Alright, let's work through 3887 times 531 step by step
3887 × 531 = 531 × (3887)
+ 531 × 7 what gives us 3717
+ 531 × 80 yielding 42480
+ 531 × 800 giving us 424800
+ 531 × 3000 which equals 1593000

= 2063997
