Alright, let's work through 6240 times 1328 step by step
6240 × 1328 = 1328 × (6240)
+ 1328 × 0 what gives us 0
+ 1328 × 40 that equals 53120
+ 1328 × 200 giving us 265600
+ 1328 × 6000 resulting in 7968000

= 8286720
