Alright, let's work through 8510 times 9969 step by step
8510 × 9969 = 9969 × (8510)
+ 9969 × 0 resulting in 0
+ 9969 × 10 yielding 99690
+ 9969 × 500 which equals 4984500
+ 9969 × 8000 which equals 79752000

= 84836190
