Alright, let's work through 3680 times 5100 step by step
3680 × 5100 = 5100 × (3680)
+ 5100 × 0 resulting in 0
+ 5100 × 80 which equals 408000
+ 5100 × 600 giving us 3060000
+ 5100 × 3000 resulting in 15300000

= 18768000
