We're going to solve 6891 multiplied by 1400
6891 × 1400 = 1400 × (6891)
+ 1400 × 1 that results in 1400
+ 1400 × 90 yielding 126000
+ 1400 × 800 resulting in 1120000
+ 1400 × 6000 giving us 8400000

= 9647400
