Alright, let's work through 7428 times 2280 step by step
7428 × 2280 = 2280 × (7428)
+ 2280 × 8 what gives us 18240
+ 2280 × 20 what gives us 45600
+ 2280 × 400 yielding 912000
+ 2280 × 7000 resulting in 15960000

= 16935840
