Alright, let's work through 2280 times 9056 step by step
2280 × 9056 = 9056 × (2280)
+ 9056 × 0 producing 0
+ 9056 × 80 that results in 724480
+ 9056 × 200 that is equal 1811200
+ 9056 × 2000 which equals 18112000

= 20647680
