Alright, let's work through 8643 times 2838 step by step
8643 × 2838 = 2838 × (8643)
+ 2838 × 3 resulting in 8514
+ 2838 × 40 what gives us 113520
+ 2838 × 600 yielding 1702800
+ 2838 × 8000 that results in 22704000

= 24528834
