We're going to solve 1557 multiplied by 7873
1557 × 7873 = 7873 × (1557)
+ 7873 × 7 that equals 55111
+ 7873 × 50 resulting in 393650
+ 7873 × 500 giving us 3936500
+ 7873 × 1000 producing 7873000

= 12258261
