Alright, let's work through 83480289 times 42013822 step by step
83480289 × 42013822 = 42013822 × (83480289)
+ 42013822 × 9 resulting in 378124398
+ 42013822 × 80 giving us 3361105760
+ 42013822 × 200 what gives us 8402764400
+ 42013822 × 0000 resulting in 0
+ 42013822 × 80000 giving us 3361105760000
+ 42013822 × 400000 that is equal 16805528800000
+ 42013822 × 3000000 what gives us 126041466000000
+ 42013822 × 80000000 yielding 3361105760000000

= 3507326002554558
