come si fa 10000 x 10000 ?

0 0 0 0 1 0 0 0 0 1 x = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
x