We're going to solve 1247 multiplied by 3657
1247 × 3657 = 3657 × (1247)
+ 3657 × 7 which equals 25599
+ 3657 × 40 that is equal 146280
+ 3657 × 200 that results in 731400
+ 3657 × 1000 yielding 3657000

= 4560279
