In short,GOD has overseen/planned/made sure... that Qoran was collected and put into the order we have it:
75:16
Do not move your tongue to hasten it.
لا تُحَرِّك بِهِ لِسانَكَ لِتَعجَلَ بِهِ
75:17
It is we who will collect it into Quran.
إِنَّ عَلَينا جَمعَهُ وَقُرءانَهُ
75:18
Once we recite it, you shall follow such a Quran.
فَإِذا قَرَأنٰهُ فَاتَّبِع قُرءانَهُ Basically the Qoran is protected and preserved by GOD s interlock mathematical system. Letters ,words.verses and surahs have been ordered and locked together mathematically.
We have touched only a little bit of it so far. .More to come by the quantum computer generations in the future.
Here are a couple of examples:
1- Surah 2 has 286 verses. Verse 143 is exactly in the middle" We have made you a -middle"Wasatan"nation-even the number of letters of the verses before are equal to the number of letters of the verses after in the surah. You can never do that randomly or if you change
verses order.
We know this is surah 2 because GOD says in it "Produce one surah like it (like surah one). Look at surah one mathematical miracle!
https://www.bing.com/videos/search?q=mathematcal+miraclre+of+qoran&view=detail&mid=8BA9A747F6B61A9254CA8BA9A747F6B61A9254CA&FORM=VIREThen in surah 11,GOD says produce ten surahs like it(the last ten surahs).i.e surah 2 and surah 11 are in the right order.
2- In surah Ankabut(The spider 29:14) GOD said Noah stayed/lined 1000 less 50. In surah Noah(Nooh) there are 950 letters.
...Only a tip of the iceberg....
From my ongoing study ,I am certain GOD ordered the Qoran as we have it and locked every letter, word,verse and surah mathematically,Interlock at its best.A miracle to top all previous miracles.
GOD bless you.
Peace.