1. A data processing method for calculating a remainder R that results from a division of an integer A by a prescribed integer B, which comprises the steps of: representing the integer A using a data symbol word; decomposing the data symbol word into a plurality of data symbol part-words each having an identical word length L; and performing a recursion step by applying a function dependent on the prescribed number B and the word length L to an argument dependent on a function value obtained in a preceding recursion step, and on a respective data symbol part-word assigned to the recursion step considered.