Alright, let's work through 80345469 times 44728000 step by step
80345469 × 44728000 = 44728000 × (80345469)
+ 44728000 × 9 which equals 402552000
+ 44728000 × 60 resulting in 2683680000
+ 44728000 × 400 that results in 17891200000
+ 44728000 × 5000 yielding 223640000000
+ 44728000 × 40000 yielding 1789120000000
+ 44728000 × 300000 which equals 13418400000000
+ 44728000 × 0000000 giving us 0
+ 44728000 × 80000000 that equals 3578240000000000

= 3593692137432000
