Alright, let's work through 3960 times 2789 step by step
3960 × 2789 = 2789 × (3960)
+ 2789 × 0 resulting in 0
+ 2789 × 60 that is equal 167340
+ 2789 × 900 resulting in 2510100
+ 2789 × 3000 producing 8367000

= 11044440
