We're going to solve 7873 multiplied by 1539
7873 × 1539 = 1539 × (7873)
+ 1539 × 3 that equals 4617
+ 1539 × 70 that is equal 107730
+ 1539 × 800 which equals 1231200
+ 1539 × 7000 yielding 10773000

= 12116547
