Alright, let's work through 3659 times 5904 step by step
3659 × 5904 = 5904 × (3659)
+ 5904 × 9 giving us 53136
+ 5904 × 50 that is equal 295200
+ 5904 × 600 what gives us 3542400
+ 5904 × 3000 producing 17712000

= 21602736
