We're dividing 7227426 by 561 
The aim is to understand the frequency of 561 in 7227426.

Step 1:
561 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 561

On to step 2:
72 divided by 561 is 0 with a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Grab the next digit (2) from the dividend, add it to 72, then carry on: 722 / 561

Moving on to step 3:
561 can be fit into 722 1 times, resulting in a remainder of 161.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 561 from 722 and we're left with 161.
Append the next digit (7) from the dividend to 161 and continue with: 1617 / 561

Advancing to step 4:
561 can be fit into 1617 2 times, resulting in a remainder of 495.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 495 after subtracting 1122 from 1617.
Include the next digit (4) from the dividend after 495, then repeat: 4954 / 561

Advancing to step 5:
4954 divided by 561 is 8 with a remainder of 466.
Use 8 as the next digit of our solution. 
Result so far: 128.0
If we subtract 4488 from 4954, we get 466.
Grab the next digit (2) from the dividend, add it to 466, then carry on: 4662 / 561

Step 6:
561 goes into 4662 8 times with a remainder of 174.
The next digit of our result is 8. 
Result so far: 1288.0
The remainder is 174 after subtracting 4488 from 4662.
Append the next digit (6) from the dividend to 174 and continue with: 1746 / 561

Going ahead to step 7:
The number 561 fits into 1746 3 times, leaving a remainder of 63.
The next digit of our result is 3. 
Result so far: 12883.0
If we subtract 1683 from 1746, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 8:
If we divide 630 by 561, we get 1 and a remainder of 69.
The next digit of our result is 1. 
Result so far: 12883.1
Subtract 561 from 630 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 9:
When dividing 690 by 561, we get 1 with a remainder of 129.
Record the quotient 1 as the next digit in the result. 
Result so far: 12883.11
Subtract 561 from 690 to get 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Our division results in 12883.11 with a remaining 0.129.