Alright, let's work through 7748 times 1657 step by step
7748 × 1657 = 1657 × (7748)
+ 1657 × 8 producing 13256
+ 1657 × 40 what gives us 66280
+ 1657 × 700 what gives us 1159900
+ 1657 × 7000 which equals 11599000

= 12838436
