Alright, let's work through 6648 times 6370 step by step
6648 × 6370 = 6370 × (6648)
+ 6370 × 8 that equals 50960
+ 6370 × 40 yielding 254800
+ 6370 × 600 yielding 3822000
+ 6370 × 6000 resulting in 38220000

= 42347760
