Alright, let's work through 50009809 times 81209219 step by step
50009809 × 81209219 = 81209219 × (50009809)
+ 81209219 × 9 resulting in 730882971
+ 81209219 × 00 that results in 0
+ 81209219 × 800 that results in 64967375200
+ 81209219 × 9000 yielding 730882971000
+ 81209219 × 00000 producing 0
+ 81209219 × 000000 producing 0
+ 81209219 × 0000000 what gives us 0
+ 81209219 × 50000000 giving us 4060460950000000

= 4061257531229171
