Alright, let's work through 3685 times 5880 step by step
3685 × 5880 = 5880 × (3685)
+ 5880 × 5 what gives us 29400
+ 5880 × 80 giving us 470400
+ 5880 × 600 that is equal 3528000
+ 5880 × 3000 which equals 17640000

= 21667800
