Alright, let's work through 1200 times 5615 step by step
1200 × 5615 = 5615 × (1200)
+ 5615 × 0 yielding 0
+ 5615 × 00 that results in 0
+ 5615 × 200 producing 1123000
+ 5615 × 1000 yielding 5615000

= 6738000
