We're going to solve 6486 multiplied by 3116
6486 × 3116 = 3116 × (6486)
+ 3116 × 6 that results in 18696
+ 3116 × 80 yielding 249280
+ 3116 × 400 giving us 1246400
+ 3116 × 6000 that results in 18696000

= 20210376
