Alright, let's work through 3091 times 1393 step by step
3091 × 1393 = 1393 × (3091)
+ 1393 × 1 what gives us 1393
+ 1393 × 90 which equals 125370
+ 1393 × 000 what gives us 0
+ 1393 × 3000 giving us 4179000

= 4305763
