We're going to solve 5603 multiplied by 2981
5603 × 2981 = 2981 × (5603)
+ 2981 × 3 that equals 8943
+ 2981 × 00 which equals 0
+ 2981 × 600 producing 1788600
+ 2981 × 5000 what gives us 14905000

= 16702543
