303216 ÷ 29 
The aim is to understand the frequency of 29 in 303216.

Step 1:
When dividing 3 by 29, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 29

Let's proceed to step 2:
The number 29 fits into 30 1 times, leaving a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 29 from 30, we get 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 29

On to step 3:
If we divide 13 by 29, we get 0 and a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 13, we end up with 13.
Fetch the next digit (2) from the dividend, attach it to 13 and continue: 132 / 29

Advancing to step 4:
29 goes into 132 4 times with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
Subtract 116 from 132 to get 16.
Fetch the next digit (1) from the dividend, attach it to 16 and continue: 161 / 29

Step 5:
29 can be fit into 161 5 times, resulting in a remainder of 16.
The next digit of our result is 5. 
Result so far: 1045.0
If we subtract 145 from 161, we get 16.
Bring next digit (6) of the dividend behind the 16 and repeat the process: 166 / 29

Going ahead to step 6:
If we divide 166 by 29, we get 5 and a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 10455.0
Subtracting 145 from 166 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:
29 goes into 210 7 times with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 10455.7
If we take 203 away from 210, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 8:
If we divide 70 by 29, we get 2 and a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 10455.72
Subtracting 58 from 70 leaves us 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.

Going ahead to step 9:
29 goes into 120 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 10455.724
If we subtract 116 from 120, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
If we divide 40 by 29, we get 1 and a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 10455.7241
If we take 29 away from 40, we end up 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.

Step 11:
The number 29 fits into 110 3 times, leaving a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 10455.72413
If we take 87 away from 110, we end up 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.

Let's proceed to step 12:
29 can be fit into 230 7 times, resulting in a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 10455.724137
Subtracting 203 from 230 leaves us 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.

Moving on to step 13:
29 can be fit into 270 9 times, resulting in a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 10455.7241379
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.

Step 14:
When dividing 90 by 29, we get 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 10455.72413793
The remainder is 3 after subtracting 87 from 90.
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 10455.72413793, with a leftover of 3e-09.