Alright, let's work through 55490689 times 21147376 step by step
55490689 × 21147376 = 21147376 × (55490689)
+ 21147376 × 9 producing 190326384
+ 21147376 × 80 yielding 1691790080
+ 21147376 × 600 giving us 12688425600
+ 21147376 × 0000 giving us 0
+ 21147376 × 90000 what gives us 1903263840000
+ 21147376 × 400000 resulting in 8458950400000
+ 21147376 × 5000000 that is equal 105736880000000
+ 21147376 × 50000000 giving us 1057368800000000

= 1173482464782064
