We're going to solve 4535 multiplied by 1578
4535 × 1578 = 1578 × (4535)
+ 1578 × 5 which equals 7890
+ 1578 × 30 which equals 47340
+ 1578 × 500 which equals 789000
+ 1578 × 4000 that is equal 6312000

= 7156230
