Alright, let's work through 9881 times 4638 step by step
9881 × 4638 = 4638 × (9881)
+ 4638 × 1 what gives us 4638
+ 4638 × 80 that results in 371040
+ 4638 × 800 what gives us 3710400
+ 4638 × 9000 that is equal 41742000

= 45828078
