Alright, let's work through 9881 times 413 step by step
9881 × 413 = 413 × (9881)
+ 413 × 1 what gives us 413
+ 413 × 80 that is equal 33040
+ 413 × 800 that is equal 330400
+ 413 × 9000 producing 3717000

= 4080853
