Let's calculate 6258 x 2503
6258 × 2503 = 2503 × (6258)
+ 2503 × 8 what gives us 20024
+ 2503 × 50 what gives us 125150
+ 2503 × 200 what gives us 500600
+ 2503 × 6000 what gives us 15018000

= 15663774
