Alright, let's work through 3840 times 6677 step by step
3840 × 6677 = 6677 × (3840)
+ 6677 × 0 which equals 0
+ 6677 × 40 yielding 267080
+ 6677 × 800 that is equal 5341600
+ 6677 × 3000 producing 20031000

= 25639680
