Let's calculate 55000984 x 80903431
55000984 × 80903431 = 80903431 × (55000984)
+ 80903431 × 4 yielding 323613724
+ 80903431 × 80 producing 6472274480
+ 80903431 × 900 producing 72813087900
+ 80903431 × 0000 giving us 0
+ 80903431 × 00000 yielding 0
+ 80903431 × 000000 giving us 0
+ 80903431 × 5000000 that results in 404517155000000
+ 80903431 × 50000000 what gives us 4045171550000000

= 4449768313976104
