We're going to solve 1624 multiplied by 7815
1624 × 7815 = 7815 × (1624)
+ 7815 × 4 giving us 31260
+ 7815 × 20 resulting in 156300
+ 7815 × 600 resulting in 4689000
+ 7815 × 1000 producing 7815000

= 12691560
