129059 ÷ 17 
We want to figure out the number of times 129059 can be divided by 17.

Step 1:
The number 17 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 17

On to step 2:
The number 17 fits into 12 0 times, leaving a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 17

Going ahead to step 3:
17 goes into 129 7 times with a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 119 from 129 to get 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 17

On to step 4:
100 divided by 17 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 75.0
Subtracting 85 from 100 leaves us with 15.
Include the next digit (5) from the dividend after 15, then repeat: 155 / 17

Step 5:
17 can be fit into 155 9 times, resulting in a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 759.0
If we take 153 away from 155, we end up with 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 17

Advancing to step 6:
When dividing 29 by 17, we get 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 7591.0
The remainder is 12 after subtracting 17 from 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
The number 17 fits into 120 7 times, leaving a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 7591.7
Subtract 119 from 120 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 8:
17 can be fit into 10 0 times, resulting in a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 7591.7
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
17 can be fit into 100 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 7591.705
If we subtract 85 from 100, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 10:
150 divided by 17 is 8 with a remainder of 14.
The next digit of our result is 8. 
Result so far: 7591.7058
If we subtract 136 from 150, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
140 divided by 17 is 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 7591.70588
Deduct 136 from 140 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.

The final outcome is 7591.70588, with a leftover of 4e-06.