Alright, let's work through 3867 times 3630 step by step
3867 × 3630 = 3630 × (3867)
+ 3630 × 7 what gives us 25410
+ 3630 × 60 which equals 217800
+ 3630 × 800 resulting in 2904000
+ 3630 × 3000 yielding 10890000

= 14037210
