We divide 5202429 by 129
We're looking to find how many times 129 goes into 5202429.

Step 1:
If we divide 5 by 129, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 129

On to step 2:
When dividing 52 by 129, we get 0 with a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 52 after subtracting 0 from 52.
Include the next digit (0) from the dividend after 52, then repeat: 520 / 129

Moving on to step 3:
If we divide 520 by 129, we get 4 and a remainder of 4.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 4 after subtracting 516 from 520.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 129

Step 4:
When dividing 42 by 129, we get 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 40.0
If we take 0 away from 42, we end up with 42.
Append the next digit (4) from the dividend to 42 and continue with: 424 / 129

On to step 5:
The number 129 fits into 424 3 times, leaving a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 403.0
Subtracting 387 from 424 leaves us with 37.
Fetch the next digit (2) from the dividend, attach it to 37 and continue: 372 / 129

Advancing to step 6:
The number 129 fits into 372 2 times, leaving a remainder of 114.
Put 2 as the next digit of the answer. 
Result so far: 4032.0
If we subtract 258 from 372, we get 114.
Append the next digit (9) from the dividend to 114 and continue with: 1149 / 129

Step 7:
When dividing 1149 by 129, we get 8 with a remainder of 117.
Use 8 as the next digit of our solution. 
Result so far: 40328.0
The remainder is 117 after subtracting 1032 from 1149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Step 8:
The number 129 fits into 1170 9 times, leaving a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 40328.9
Deduct 1161 from 1170 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
129 goes into 90 0 times with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 40328.9
If we take 0 away from 90, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 10:
129 can be fit into 900 6 times, resulting in a remainder of 126.
Write down 6 as next digit of the result. 
Result so far: 40328.906
Subtract 774 from 900 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Step 11:
129 can be fit into 1260 9 times, resulting in a remainder of 99.
The next digit of our result is 9. 
Result so far: 40328.9069
The remainder is 99 after subtracting 1161 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Going ahead to step 12:
The number 129 fits into 990 7 times, leaving a remainder of 87.
The number 7 becomes the next digit in our result. 
Result so far: 40328.90697
Deduct 903 from 990 and we're left with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Step 13:
129 can be fit into 870 6 times, resulting in a remainder of 96.
The next digit of our result is 6. 
Result so far: 40328.906976
If we subtract 774 from 870, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

On to step 14:
If we divide 960 by 129, we get 7 and a remainder of 57.
The next digit of our result is 7. 
Result so far: 40328.9069767
Deduct 903 from 960 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 15:
The number 129 fits into 570 4 times, leaving a remainder of 54.
The number 4 becomes the next digit in our result. 
Result so far: 40328.90697674
If we subtract 516 from 570, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

After the division, we end up with 40328.90697674 and a remainder of 5.4e-08.