We're going to solve 4689 multiplied by 2163
4689 × 2163 = 2163 × (4689)
+ 2163 × 9 giving us 19467
+ 2163 × 80 that results in 173040
+ 2163 × 600 what gives us 1297800
+ 2163 × 4000 what gives us 8652000

= 10142307
