Alright, let's work through 3511 times 3988 step by step
3511 × 3988 = 3988 × (3511)
+ 3988 × 1 producing 3988
+ 3988 × 10 giving us 39880
+ 3988 × 500 resulting in 1994000
+ 3988 × 3000 that is equal 11964000

= 14001868
