Alright, let's work through 3981 times 5173 step by step
3981 × 5173 = 5173 × (3981)
+ 5173 × 1 which equals 5173
+ 5173 × 80 resulting in 413840
+ 5173 × 900 yielding 4655700
+ 5173 × 3000 producing 15519000

= 20593713
