Alright, let's work through 6680 times 7840 step by step
6680 × 7840 = 7840 × (6680)
+ 7840 × 0 which equals 0
+ 7840 × 80 that results in 627200
+ 7840 × 600 which equals 4704000
+ 7840 × 6000 resulting in 47040000

= 52371200
