Alright, let's work through 5102 times 3686 step by step
5102 × 3686 = 3686 × (5102)
+ 3686 × 2 which equals 7372
+ 3686 × 00 yielding 0
+ 3686 × 100 giving us 368600
+ 3686 × 5000 resulting in 18430000

= 18805972
