Alright, let's work through 8502 times 4717 step by step
8502 × 4717 = 4717 × (8502)
+ 4717 × 2 that equals 9434
+ 4717 × 00 which equals 0
+ 4717 × 500 resulting in 2358500
+ 4717 × 8000 which equals 37736000

= 40103934
