Let's calculate 7721 x 3888
7721 × 3888 = 3888 × (7721)
+ 3888 × 1 which equals 3888
+ 3888 × 20 which equals 77760
+ 3888 × 700 what gives us 2721600
+ 3888 × 7000 that is equal 27216000

= 30019248
