We're going to solve 66396523 multiplied by 72511121
66396523 × 72511121 = 72511121 × (66396523)
+ 72511121 × 3 which equals 217533363
+ 72511121 × 20 producing 1450222420
+ 72511121 × 500 producing 36255560500
+ 72511121 × 6000 what gives us 435066726000
+ 72511121 × 90000 yielding 6526000890000
+ 72511121 × 300000 which equals 21753336300000
+ 72511121 × 6000000 yielding 435066726000000
+ 72511121 × 60000000 yielding 4350667260000000

= 4814486313232283
