7159 ÷ 9 
Let's see how many times 9 fits into 7159.

Step 1:
The number 9 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 9

Step 2:
The number 9 fits into 71 7 times, leaving a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 63 from 71 leaves us with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 9

Step 3:
If we divide 85 by 9, we get 9 and a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 79.0
If we take 81 away from 85, we end up with 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 9

Going ahead to step 4:
The number 9 fits into 49 5 times, leaving a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 795.0
Subtracting 45 from 49 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 5:
40 divided by 9 is 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 795.4
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 6:
9 can be fit into 40 4 times, resulting in a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 795.44
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 795.44 and a remainder of 0.004.