We divide 12561544 by 225
The aim is to understand the frequency of 225 in 12561544.

Moving on to step 1:
225 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 225

Going ahead to step 2:
12 divided by 225 is 0 with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (5) from the dividend, attach it to 12 and continue: 125 / 225

Step 3:
If we divide 125 by 225, we get 0 and a remainder of 125.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 125 and we're left with 125.
Grab the next digit (6) from the dividend, add it to 125, then carry on: 1256 / 225

Let's proceed to step 4:
1256 divided by 225 is 5 with a remainder of 131.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 1125 from 1256 to get 131.
Fetch the next digit (1) from the dividend, attach it to 131 and continue: 1311 / 225

Going ahead to step 5:
225 can be fit into 1311 5 times, resulting in a remainder of 186.
Write down 5 as next digit of the result. 
Result so far: 55.0
Subtract 1125 from 1311 to get 186.
Bring next digit (5) of the dividend behind the 186 and repeat the process: 1865 / 225

Moving on to step 6:
The number 225 fits into 1865 8 times, leaving a remainder of 65.
The next digit of our result is 8. 
Result so far: 558.0
If we subtract 1800 from 1865, we get 65.
Include the next digit (4) from the dividend after 65, then repeat: 654 / 225

Going ahead to step 7:
225 goes into 654 2 times with a remainder of 204.
Use 2 as the next digit of our solution. 
Result so far: 5582.0
Subtract 450 from 654 to get 204.
Include the next digit (4) from the dividend after 204, then repeat: 2044 / 225

Step 8:
If we divide 2044 by 225, we get 9 and a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 55829.0
Subtract 2025 from 2044 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
If we divide 190 by 225, we get 0 and a remainder of 190.
Put 0 as the next digit of the answer. 
Result so far: 55829.0
Subtracting 0 from 190 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 10:
225 goes into 1900 8 times with a remainder of 100.
The next digit of our result is 8. 
Result so far: 55829.08
The remainder is 100 after subtracting 1800 from 1900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 11:
225 can be fit into 1000 4 times, resulting in a remainder of 100.
Put 4 as the next digit of the answer. 
Result so far: 55829.084
If we subtract 900 from 1000, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 12:
1000 divided by 225 is 4 with a remainder of 100.
Put 4 as the next digit of the answer. 
Result so far: 55829.0844
The remainder is 100 after subtracting 900 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 55829.0844 with a remaining 0.001.