Alright, let's work through 8690 times 6247 step by step
8690 × 6247 = 6247 × (8690)
+ 6247 × 0 that equals 0
+ 6247 × 90 resulting in 562230
+ 6247 × 600 producing 3748200
+ 6247 × 8000 yielding 49976000

= 54286430
