come si fa 44720 x 44720 ?

0 2 7 4 4 0 2 7 4 4 x = 0 0 0 0 0 0 4 4 1 9 8 0 4 1 0 5 3 3 1 3 0 8 8 2 8 1 7 1 0 8 8 2 8 1 7 1 1 2 1 1 0 0 4 8 7 8 9 9 9
x