Why Muslims are separated all over the world?How can I have the Holy Qur'an?

Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.

If you mean Muslims being separated, it is due to differences concerning creed, which is a natural result of their ignorance in religion and the true creed of Islam or blind bigotry and their following their own caprices. Here, it is the duty of Muslims to have the same belief of ahl al-Sunnah Wa al-Jama'ah which is based on al-Qur'an and Sunnah (of Allah's Messenger SAW) and the faithful understanding of al-Salaf and their true followers.
Allah says {And whoever contradicts and opposes the Messenger (Muhammad SAW) after the right path has been shown clearly to him, and follows other than the believers' way. We shall keep him in the path he has chosen, and burn him in Hell - what an evil destination} [4:115]
If you mean differences between Muslims concerning Fiqh, this also is a natural result of differences among the schools of Fiqh and their leaders. These differences, in fact, are based on each Imam's understanding of the Qur'an and the Sunnah and his knowledge in this concern, not due to whims and caprices. (It is not suitable nor possible to explain such matters here).
Sheikh al-Islam Ibn Taymiyya explained this point in his valuable book "Raf' al-Malam 'An al-Aemmah al-Aa'lam (Imams are not be blamed) and in his encyclopedia (20 volumes) of Fatawa.
In brief, we state that such differences are natural result to Imam's understanding of the Qur'an and Sunnah and the authenticity of the prophetic Hadith, i.e. sound, good,…. And how they used such texts. This is, for sure, reasonable and possible. Ibn Qudamah (May Allah Mercy be upon him) said: 'The Imams' agreement constitutes a clear and precise evidence, and their difference constitutes a good and pleasant blessing.' However, a Muslim should not follow their (Imam's) opinions if they contradict the Prophetic Hadith that shows clear evidence, because if such evidence had been shown to them, they would follow it.
As for differences among Muslims concerning political stances and many religious and worldly issues that lead them to quarrel, hate and war on all levels, this is a result of following caprices and whims as well as absence of commitment to the teachings Islam concerning unity and discarding difference.
Allah says: {And hold fast, all of you together, to the Rope of Allâh (i.e. this Qur'ân), and be not divided among yourselves} [3:103]
{And be not as those who divided and differed among themselves after the clear proofs had come to them. It is they for whom there is an awful torment.} [3:105]
{…….and do not dispute (with one another) lest you lose courage and your strength depart,……} [8:46]
We ask Allah, the Exalted, to bring Muslims together and unite them on the path of His obedience and that of His Messenger (SAW).
As for getting a copy of al-Qur'an, you can request this of some near Islamic center, or Muslim community, or a Muslim person. Please, accept our apology in this concern since this is not among our activities.
Allah knows best.