Complex sentence: Hence, the 4-4-3-2 pattern has a "multiplicity" of twelve: in total there are twelve ways a 4-4-3-2 pattern can be mapped onto the four suits.
Split into simpler sentences: Hence, the number of "suit permutations" of the 4-4-3-2 pattern is twelve. Or, stated differently, in total there are twelve ways a 4-4-3-2 pattern can be mapped onto the four suits.