Alright, let's work through 3660 times 4859 step by step
3660 × 4859 = 4859 × (3660)
+ 4859 × 0 yielding 0
+ 4859 × 60 what gives us 291540
+ 4859 × 600 what gives us 2915400
+ 4859 × 3000 what gives us 14577000

= 17783940
