come si fa 34557 x 3554 ?

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