We're going to solve 1604 multiplied by 3657
1604 × 3657 = 3657 × (1604)
+ 3657 × 4 that results in 14628
+ 3657 × 00 yielding 0
+ 3657 × 600 that is equal 2194200
+ 3657 × 1000 producing 3657000

= 5865828
