Alright, let's work through 3647 times 1555 step by step
3647 × 1555 = 1555 × (3647)
+ 1555 × 7 yielding 10885
+ 1555 × 40 producing 62200
+ 1555 × 600 what gives us 933000
+ 1555 × 3000 which equals 4665000

= 5671085
