We're going to solve 3991 multiplied by 7523
3991 × 7523 = 7523 × (3991)
+ 7523 × 1 producing 7523
+ 7523 × 90 yielding 677070
+ 7523 × 900 giving us 6770700
+ 7523 × 3000 producing 22569000

= 30024293
