Alright, let's work through 80440969 times 43551530 step by step
80440969 × 43551530 = 43551530 × (80440969)
+ 43551530 × 9 that results in 391963770
+ 43551530 × 60 what gives us 2613091800
+ 43551530 × 900 that equals 39196377000
+ 43551530 × 0000 resulting in 0
+ 43551530 × 40000 which equals 1742061200000
+ 43551530 × 400000 resulting in 17420612000000
+ 43551530 × 0000000 which equals 0
+ 43551530 × 80000000 yielding 3484122400000000

= 3503327274632570
