Alright, let's work through 3036 times 4546 step by step
3036 × 4546 = 4546 × (3036)
+ 4546 × 6 producing 27276
+ 4546 × 30 giving us 136380
+ 4546 × 000 what gives us 0
+ 4546 × 3000 producing 13638000

= 13801656
