We're going to solve 1921 multiplied by 5163
1921 × 5163 = 5163 × (1921)
+ 5163 × 1 what gives us 5163
+ 5163 × 20 what gives us 103260
+ 5163 × 900 resulting in 4646700
+ 5163 × 1000 which equals 5163000

= 9918123
