Alright, let's work through 3960 times 3368 step by step
3960 × 3368 = 3368 × (3960)
+ 3368 × 0 yielding 0
+ 3368 × 60 that is equal 202080
+ 3368 × 900 that equals 3031200
+ 3368 × 3000 producing 10104000

= 13337280
