Alright, let's work through 9240 times 2278 step by step
9240 × 2278 = 2278 × (9240)
+ 2278 × 0 that results in 0
+ 2278 × 40 that is equal 91120
+ 2278 × 200 which equals 455600
+ 2278 × 9000 yielding 20502000

= 21048720
