We're going to solve 1583 multiplied by 7742
1583 × 7742 = 7742 × (1583)
+ 7742 × 3 resulting in 23226
+ 7742 × 80 resulting in 619360
+ 7742 × 500 resulting in 3871000
+ 7742 × 1000 that is equal 7742000

= 12255586
