Alright, let's work through 8351 times 8455 step by step
8351 × 8455 = 8455 × (8351)
+ 8455 × 1 yielding 8455
+ 8455 × 50 that equals 422750
+ 8455 × 300 that results in 2536500
+ 8455 × 8000 that equals 67640000

= 70607705
