Alright, let's work through 9257 times 8470 step by step
9257 × 8470 = 8470 × (9257)
+ 8470 × 7 that results in 59290
+ 8470 × 50 that is equal 423500
+ 8470 × 200 producing 1694000
+ 8470 × 9000 yielding 76230000

= 78406790
