Alright, let's work through 800062 times 81908089 step by step
800062 × 81908089 = 81908089 × (800062)
+ 81908089 × 2 giving us 163816178
+ 81908089 × 60 that is equal 4914485340
+ 81908089 × 000 giving us 0
+ 81908089 × 0000 resulting in 0
+ 81908089 × 00000 which equals 0
+ 81908089 × 800000 giving us 65526471200000

= 65531549501518
