We're going to solve 3999 multiplied by 7645
3999 × 7645 = 7645 × (3999)
+ 7645 × 9 giving us 68805
+ 7645 × 90 yielding 688050
+ 7645 × 900 yielding 6880500
+ 7645 × 3000 that is equal 22935000

= 30572355
