We look at the division of 225923 by 29 
The aim is to understand the frequency of 29 in 225923.

Moving on to step 1:
29 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 29

Let's proceed to step 2:
29 goes into 22 0 times with a remainder of 22.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 22, we get 22.
Bring next digit (5) of the dividend behind the 22 and repeat the process: 225 / 29

Advancing to step 3:
225 divided by 29 is 7 with a remainder of 22.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 203 away from 225, we end up with 22.
Take the next digit (9) from the dividend and append it to 22, then repeat: 229 / 29

Let's proceed to step 4:
29 goes into 229 7 times with a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 77.0
The remainder is 26 after subtracting 203 from 229.
Bring next digit (2) of the dividend behind the 26 and repeat the process: 262 / 29

Advancing to step 5:
If we divide 262 by 29, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 779.0
If we subtract 261 from 262, we get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 29

Going ahead to step 6:
The number 29 fits into 13 0 times, leaving a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 7790.0
If we take 0 away from 13, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 7:
29 can be fit into 130 4 times, resulting in a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 7790.4
Deduct 116 from 130 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
29 goes into 140 4 times with a remainder of 24.
The next digit of our result is 4. 
Result so far: 7790.44
Subtracting 116 from 140 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 7790.44 and a remainder of 0.024.