Alright, let's work through 6285 times 6453 step by step
6285 × 6453 = 6453 × (6285)
+ 6453 × 5 giving us 32265
+ 6453 × 80 that results in 516240
+ 6453 × 200 that results in 1290600
+ 6453 × 6000 yielding 38718000

= 40557105
