We're dividing 403933 by 29 
The aim is to understand the frequency of 29 in 403933.

On to step 1:
When dividing 4 by 29, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 29

Moving on to step 2:
29 goes into 40 1 times with a remainder of 11.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 11 after subtracting 29 from 40.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 29

Moving on to step 3:
The number 29 fits into 113 3 times, leaving a remainder of 26.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtracting 87 from 113 leaves us with 26.
Include the next digit (9) from the dividend after 26, then repeat: 269 / 29

Going ahead to step 4:
If we divide 269 by 29, we get 9 and a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 139.0
Subtract 261 from 269 to get 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 29

Step 5:
When dividing 83 by 29, we get 2 with a remainder of 25.
Put 2 as the next digit of the answer. 
Result so far: 1392.0
If we subtract 58 from 83, we get 25.
Fetch the next digit (3) from the dividend, attach it to 25 and continue: 253 / 29

Going ahead to step 6:
253 divided by 29 is 8 with a remainder of 21.
Use 8 as the next digit of our solution. 
Result so far: 13928.0
Subtracting 232 from 253 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 7:
If we divide 210 by 29, we get 7 and a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 13928.7
Subtract 203 from 210 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 8:
29 goes into 70 2 times with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 13928.72
Deduct 58 from 70 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 9:
The number 29 fits into 120 4 times, leaving a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 13928.724
If we take 116 away from 120, 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.

On to step 10:
When dividing 40 by 29, we get 1 with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 13928.7241
Deduct 29 from 40 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 11:
29 goes into 110 3 times with a remainder of 23.
The number 3 becomes the next digit in our result. 
Result so far: 13928.72413
Subtracting 87 from 110 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 12:
If we divide 230 by 29, we get 7 and a remainder of 27.
The next digit of our result is 7. 
Result so far: 13928.724137
Deduct 203 from 230 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 13:
If we divide 270 by 29, we get 9 and a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 13928.7241379
If we take 261 away from 270, we end up 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.

On to step 14:
29 goes into 90 3 times with a remainder of 3.
The next digit of our result is 3. 
Result so far: 13928.72413793
Subtracting 87 from 90 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 13928.72413793, with a leftover of 3e-09.