Alright, let's work through 8215 times 3147 step by step
8215 × 3147 = 3147 × (8215)
+ 3147 × 5 giving us 15735
+ 3147 × 10 resulting in 31470
+ 3147 × 200 that results in 629400
+ 3147 × 8000 yielding 25176000

= 25852605
