Alright, let's work through 8991 times 851 step by step
8991 × 851 = 851 × (8991)
+ 851 × 1 resulting in 851
+ 851 × 90 producing 76590
+ 851 × 900 producing 765900
+ 851 × 8000 that results in 6808000

= 7651341
