We're going to solve 6215 multiplied by 2156
6215 × 2156 = 2156 × (6215)
+ 2156 × 5 producing 10780
+ 2156 × 10 which equals 21560
+ 2156 × 200 that equals 431200
+ 2156 × 6000 producing 12936000

= 13399540
