We divide 129124 by 5
We're looking to find how many times 5 goes into 129124.

On to step 1:
5 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 5

Advancing to step 2:
The number 5 fits into 12 2 times, leaving a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 10 away from 12, we end up with 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 5

Step 3:
29 divided by 5 is 5 with a remainder of 4.
The next digit of our result is 5. 
Result so far: 25.0
Subtract 25 from 29 to get 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 5

Advancing to step 4:
41 divided by 5 is 8 with a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 258.0
Deduct 40 from 41 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 5

Let's proceed to step 5:
If we divide 12 by 5, we get 2 and a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 2582.0
Deduct 10 from 12 and we're left with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 5

Step 6:
When dividing 24 by 5, we get 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 25824.0
If we take 20 away from 24, 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.

Advancing to step 7:
If we divide 40 by 5, we get 8 and a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 25824.8
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.

Let's proceed to step 8:
5 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 25824.8
If we take 0 away from 0, we end up 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.

Advancing to step 9:
The number 5 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 25824.8
The remainder is 0 after subtracting 0 from 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 outcome is 25824.8, with a leftover of 0.0.