Alright, let's work through 6470 times 408 step by step
6470 × 408 = 408 × (6470)
+ 408 × 0 yielding 0
+ 408 × 70 yielding 28560
+ 408 × 400 that equals 163200
+ 408 × 6000 giving us 2448000

= 2639760
