4320 ÷ 9 = 480 R0
Let's divide 4320 by 9.

Step 1:
9 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 4 to get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 9

Step 2:
9 goes into 43 4 times with a remainder of 7.
Write down 4 as next digit of of the result. 
Result so far: 4
Subtract 36 from 43 to get 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 9

Step 3:
9 goes into 72 8 times with a remainder of 0.
Write down 8 as next digit of of the result. 
Result so far: 48
Subtract 72 from 72 to get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 9

Step 4:
9 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of of the result. 
Result so far: 480
Subtract 0 from 0 to get 0.

The final result is 480 with a remainder of 0.