come si fa 45800 x 29489 ?

0 0 8 5 4 9 8 4 9 2 x = 0 0 2 7 2 5 1 4 0 0 4 6 6 4 6 3 0 0 2 3 3 2 8 1 0 0 2 7 2 5 1 4 0 0 6 1 1 1 9 1 1 1 0 0 2 6 9 5 0 5 3 1
x