Alright, let's work through 2280 times 3720 step by step
2280 × 3720 = 3720 × (2280)
+ 3720 × 0 which equals 0
+ 3720 × 80 resulting in 297600
+ 3720 × 200 producing 744000
+ 3720 × 2000 yielding 7440000

= 8481600
