We're going to solve 3945 multiplied by 4558
3945 × 4558 = 4558 × (3945)
+ 4558 × 5 what gives us 22790
+ 4558 × 40 that equals 182320
+ 4558 × 900 what gives us 4102200
+ 4558 × 3000 which equals 13674000

= 17981310
