We're going to solve 7215 multiplied by 2539
7215 × 2539 = 2539 × (7215)
+ 2539 × 5 giving us 12695
+ 2539 × 10 which equals 25390
+ 2539 × 200 yielding 507800
+ 2539 × 7000 giving us 17773000

= 18318885
