Alright, let's work through 80434365 times 49289772 step by step
80434365 × 49289772 = 49289772 × (80434365)
+ 49289772 × 5 resulting in 246448860
+ 49289772 × 60 yielding 2957386320
+ 49289772 × 300 that equals 14786931600
+ 49289772 × 4000 giving us 197159088000
+ 49289772 × 30000 yielding 1478693160000
+ 49289772 × 400000 that results in 19715908800000
+ 49289772 × 0000000 yielding 0
+ 49289772 × 80000000 yielding 3943181760000000

= 3964591511814780
