Alright, let's work through 3015 times 6629 step by step
3015 × 6629 = 6629 × (3015)
+ 6629 × 5 which equals 33145
+ 6629 × 10 that equals 66290
+ 6629 × 000 producing 0
+ 6629 × 3000 that equals 19887000

= 19986435
