What is the secret behind the difference and contradiction between the Arabic numerals used in the West and the Indian numerals used in the Quran?

It is true that the numbers currently used in the West are Arabic numerals, and that the decimal system is an Arabic discovery, and Arabs have made many contributions to mathematics. The use of Indian numerals in Qur’ans is not absolute, as many Qur’ans in the Maghreb countries use Arabic numerals, as do other countries in West Africa. This exchange of numerals does not pose a danger, as numbers are a means of counting and documentation, and there is no objection to their exchange.