Alright, let's work through 53210730 times 21240033 step by step
53210730 × 21240033 = 21240033 × (53210730)
+ 21240033 × 0 yielding 0
+ 21240033 × 30 yielding 637200990
+ 21240033 × 700 that is equal 14868023100
+ 21240033 × 0000 giving us 0
+ 21240033 × 10000 producing 212400330000
+ 21240033 × 200000 resulting in 4248006600000
+ 21240033 × 3000000 which equals 63720099000000
+ 21240033 × 50000000 giving us 1062001650000000

= 1130197661154090
