Alright, let's work through 8502 times 2582 step by step
8502 × 2582 = 2582 × (8502)
+ 2582 × 2 giving us 5164
+ 2582 × 00 yielding 0
+ 2582 × 500 that equals 1291000
+ 2582 × 8000 that equals 20656000

= 21952164
