Alright, let's work through 3647 times 1806 step by step
3647 × 1806 = 1806 × (3647)
+ 1806 × 7 which equals 12642
+ 1806 × 40 which equals 72240
+ 1806 × 600 that results in 1083600
+ 1806 × 3000 that results in 5418000

= 6586482
