Alright, let's work through 3880 times 657 step by step
3880 × 657 = 657 × (3880)
+ 657 × 0 that results in 0
+ 657 × 80 resulting in 52560
+ 657 × 800 producing 525600
+ 657 × 3000 producing 1971000

= 2549160
