Alright, let's work through 8640 times 2263 step by step
8640 × 2263 = 2263 × (8640)
+ 2263 × 0 that results in 0
+ 2263 × 40 yielding 90520
+ 2263 × 600 which equals 1357800
+ 2263 × 8000 giving us 18104000

= 19552320
