715129 ÷ 9 
Our goal is to divide 715129 by 9.

Advancing to step 1:
If we divide 7 by 9, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 9

Advancing to step 2:
If we divide 71 by 9, we get 7 and a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 63 from 71 to get 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 9

Going ahead to step 3:
9 goes into 85 9 times with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 79.0
If we subtract 81 from 85, we get 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 9

Advancing to step 4:
9 goes into 41 4 times with a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 794.0
Subtract 36 from 41 to get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 9

Step 5:
If we divide 52 by 9, we get 5 and a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 7945.0
If we subtract 45 from 52, we get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 9

Moving on to step 6:
79 divided by 9 is 8 with a remainder of 7.
Write down 8 as next digit of the result. 
Result so far: 79458.0
Deduct 72 from 79 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
If we divide 70 by 9, we get 7 and a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 79458.7
If we subtract 63 from 70, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 8:
70 divided by 9 is 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 79458.77
If we take 63 away from 70, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 79458.77, with a leftover of 0.007.