Alright, let's work through 4181 times 5118 step by step
4181 × 5118 = 5118 × (4181)
+ 5118 × 1 yielding 5118
+ 5118 × 80 producing 409440
+ 5118 × 100 which equals 511800
+ 5118 × 4000 producing 20472000

= 21398358
