Alright, let's work through 3959 times 3518 step by step
3959 × 3518 = 3518 × (3959)
+ 3518 × 9 that is equal 31662
+ 3518 × 50 yielding 175900
+ 3518 × 900 giving us 3166200
+ 3518 × 3000 what gives us 10554000

= 13927762
