Alright, let's work through 3903 times 7728 step by step
3903 × 7728 = 7728 × (3903)
+ 7728 × 3 that is equal 23184
+ 7728 × 00 what gives us 0
+ 7728 × 900 what gives us 6955200
+ 7728 × 3000 which equals 23184000

= 30162384
