Alright, let's work through 21075989 times 55974510 step by step
21075989 × 55974510 = 55974510 × (21075989)
+ 55974510 × 9 yielding 503770590
+ 55974510 × 80 giving us 4477960800
+ 55974510 × 900 that is equal 50377059000
+ 55974510 × 5000 yielding 279872550000
+ 55974510 × 70000 that is equal 3918215700000
+ 55974510 × 000000 that is equal 0
+ 55974510 × 1000000 that results in 55974510000000
+ 55974510 × 20000000 that is equal 1119490200000000

= 1179718157040390
