Alright, let's work through 80574945 times 4310489 step by step
80574945 × 4310489 = 4310489 × (80574945)
+ 4310489 × 5 resulting in 21552445
+ 4310489 × 40 yielding 172419560
+ 4310489 × 900 that is equal 3879440100
+ 4310489 × 4000 resulting in 17241956000
+ 4310489 × 70000 what gives us 301734230000
+ 4310489 × 500000 producing 2155244500000
+ 4310489 × 0000000 that is equal 0
+ 4310489 × 80000000 yielding 344839120000000

= 347317414098105
