Alright, let's work through 3684 times 3805 step by step
3684 × 3805 = 3805 × (3684)
+ 3805 × 4 what gives us 15220
+ 3805 × 80 what gives us 304400
+ 3805 × 600 what gives us 2283000
+ 3805 × 3000 yielding 11415000

= 14017620
