Alright, let's work through 6691 times 960 step by step
6691 × 960 = 960 × (6691)
+ 960 × 1 producing 960
+ 960 × 90 that results in 86400
+ 960 × 600 that results in 576000
+ 960 × 6000 resulting in 5760000

= 6423360
