Alright, let's work through 8671 times 9731 step by step
8671 × 9731 = 9731 × (8671)
+ 9731 × 1 that is equal 9731
+ 9731 × 70 producing 681170
+ 9731 × 600 which equals 5838600
+ 9731 × 8000 producing 77848000

= 84377501
