Alright, let's work through 4005 times 3283 step by step
4005 × 3283 = 3283 × (4005)
+ 3283 × 5 which equals 16415
+ 3283 × 00 what gives us 0
+ 3283 × 000 that is equal 0
+ 3283 × 4000 giving us 13132000

= 13148415
