We're dividing 129980 by 5 
Our goal is to divide 129980 by 5.

Step 1:
When dividing 1 by 5, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 5

Moving on to step 2:
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: 2.0
The remainder is 2 after subtracting 10 from 12.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 5

Going ahead to step 3:
If we divide 29 by 5, we get 5 and a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtract 25 from 29 to get 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 5

Step 4:
The number 5 fits into 49 9 times, leaving a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 259.0
Subtract 45 from 49 to get 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 5

On to step 5:
The number 5 fits into 48 9 times, leaving a remainder of 3.
The next digit of our result is 9. 
Result so far: 2599.0
Deduct 45 from 48 and we're left with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 5

Going ahead to step 6:
30 divided by 5 is 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 25996.0
Subtract 30 from 30 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.

On to step 7:
5 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 25996.0
Deduct 0 from 0 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.

On to step 8:
The number 5 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 25996.0
Subtracting 0 from 0 leaves us 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.

After the division, we end up with 25996.0 and a remainder of 0.0.