Alright, let's work through 1985 times 8621 step by step
1985 × 8621 = 8621 × (1985)
+ 8621 × 5 producing 43105
+ 8621 × 80 what gives us 689680
+ 8621 × 900 yielding 7758900
+ 8621 × 1000 what gives us 8621000

= 17112685
