Alright, let's work through 81499421 times 909027 step by step
81499421 × 909027 = 909027 × (81499421)
+ 909027 × 1 producing 909027
+ 909027 × 20 producing 18180540
+ 909027 × 400 that results in 363610800
+ 909027 × 9000 resulting in 8181243000
+ 909027 × 90000 producing 81812430000
+ 909027 × 400000 giving us 363610800000
+ 909027 × 1000000 what gives us 909027000000
+ 909027 × 80000000 producing 72722160000000

= 74085174173367
