Alright, let's work through 8431 times 9827 step by step
8431 × 9827 = 9827 × (8431)
+ 9827 × 1 that results in 9827
+ 9827 × 30 that equals 294810
+ 9827 × 400 resulting in 3930800
+ 9827 × 8000 giving us 78616000

= 82851437
