gf(2) mod
c = a % b
Calculate c = a/b, result is cremainder
gf(2) Polynomial long division
c = a/b
a = b00000000000000000000000000000100
a = 0x00000004
a = x2
b = b00000000000000000000000011000001
b = 0x000000c1
b = x7 + x6 + 1
100 | 11000001
cquotient = b00000000000000000000000000000000
cquotient = 0x00000000
cquotient = 0
cremainder = b00000000000000000000000000000100
cremainder = 0x00000004
cremainder = x2