Alright, let's work through 6408 times 1328 step by step
6408 × 1328 = 1328 × (6408)
+ 1328 × 8 giving us 10624
+ 1328 × 00 resulting in 0
+ 1328 × 400 that results in 531200
+ 1328 × 6000 producing 7968000

= 8509824
