Alright, let's work through 6462 times 8320 step by step
6462 × 8320 = 8320 × (6462)
+ 8320 × 2 yielding 16640
+ 8320 × 60 yielding 499200
+ 8320 × 400 resulting in 3328000
+ 8320 × 6000 that is equal 49920000

= 53763840
