What sultanate disseminated islamic beliefs with commercial power?

The answer is "Malacca".

Islamisation in the area encompassing Malacca bit by bit escalated between the fifteenth and sixteenth hundreds of years through examination focuses in Upeh, the locale on the north bank of the Malacca River. Islam spread from Malacca to Jambi, Kampar, Bengkalis, and the Karimun Islands in Sumatra, all through a great part of the Malay promontory, Java and even Philippines.

answer; (i-o) psychologist