"This misunderstanding of people saying 786 means bissmillah is utterly wrong. The number 7-8-6 as we see the being used today, come from Pakistan mostly but other Muslims have begun to used this term as well. They claim it represents the "Bismillah Ar-Rahman Ar-Rahim". However, there is no real evidence for this from Islam or the Arabic. It could be something in Urdu, but even that was not done by earlier scholars. In fact, some of the real scholars from these areas have told us, Muslim should not do these things". - Dr Zakir Naik.