Alright, let's work through 4006 times 1804 step by step
4006 × 1804 = 1804 × (4006)
+ 1804 × 6 resulting in 10824
+ 1804 × 00 what gives us 0
+ 1804 × 000 resulting in 0
+ 1804 × 4000 what gives us 7216000

= 7226824
