Alright, let's work through 8668 times 9631 step by step
8668 × 9631 = 9631 × (8668)
+ 9631 × 8 what gives us 77048
+ 9631 × 60 yielding 577860
+ 9631 × 600 that results in 5778600
+ 9631 × 8000 yielding 77048000

= 83481508
