129609 divided by 5 
We want to figure out the number of times 129609 can be divided by 5.

Moving on to step 1:
If we divide 1 by 5, we get 0 and 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.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 5

Step 2:
If we divide 12 by 5, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 10 from 12 leaves us with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 5

On to step 3:
5 goes into 29 5 times with a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtracting 25 from 29 leaves us with 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 5

On to step 4:
If we divide 46 by 5, we get 9 and a remainder of 1.
The next digit of our result is 9. 
Result so far: 259.0
If we subtract 45 from 46, we get 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 5

Step 5:
10 divided by 5 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 2592.0
Deduct 10 from 10 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 5

Going ahead to step 6:
5 goes into 9 1 times with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 25921.0
If we take 5 away from 9, we end up 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.

Going ahead to step 7:
If we divide 40 by 5, we get 8 and a remainder of 0.
The next digit of our result is 8. 
Result so far: 25921.8
Deduct 40 from 40 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
5 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 25921.8
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
When dividing 0 by 5, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 25921.8
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 25921.8 with a remainder of 0.0.