Alright, let's work through 1809 times 3933 step by step
1809 × 3933 = 3933 × (1809)
+ 3933 × 9 that equals 35397
+ 3933 × 00 what gives us 0
+ 3933 × 800 that is equal 3146400
+ 3933 × 1000 resulting in 3933000

= 7114797
