Alright, let's work through 4640 times 2758 step by step
4640 × 2758 = 2758 × (4640)
+ 2758 × 0 producing 0
+ 2758 × 40 what gives us 110320
+ 2758 × 600 producing 1654800
+ 2758 × 4000 producing 11032000

= 12797120
