We look at the division of 225209 by 61 
The aim is to understand the frequency of 61 in 225209.

Moving on to step 1:
When dividing 2 by 61, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 61

Let's proceed to step 2:
61 can be fit into 22 0 times, resulting in a remainder of 22.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 22 after subtracting 0 from 22.
Append the next digit (5) from the dividend to 22 and continue with: 225 / 61

Moving on to step 3:
225 divided by 61 is 3 with a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 183 from 225 leaves us with 42.
Grab the next digit (2) from the dividend, add it to 42, then carry on: 422 / 61

Advancing to step 4:
422 divided by 61 is 6 with a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 36.0
Subtract 366 from 422 to get 56.
Include the next digit (0) from the dividend after 56, then repeat: 560 / 61

Step 5:
When dividing 560 by 61, we get 9 with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 369.0
Subtract 549 from 560 to get 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 61

Let's proceed to step 6:
61 goes into 119 1 times with a remainder of 58.
Record the quotient 1 as the next digit in the result. 
Result so far: 3691.0
The remainder is 58 after subtracting 61 from 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 7:
The number 61 fits into 580 9 times, leaving a remainder of 31.
The number 9 becomes the next digit in our result. 
Result so far: 3691.9
The remainder is 31 after subtracting 549 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 8:
310 divided by 61 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 3691.95
The remainder is 5 after subtracting 305 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 9:
If we divide 50 by 61, we get 0 and a remainder of 50.
The next digit of our result is 0. 
Result so far: 3691.95
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
500 divided by 61 is 8 with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 3691.9508
If we subtract 488 from 500, we get 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 11:
61 goes into 120 1 times with a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 3691.95081
The remainder is 59 after subtracting 61 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 12:
590 divided by 61 is 9 with a remainder of 41.
Put 9 as the next digit of the answer. 
Result so far: 3691.950819
The remainder is 41 after subtracting 549 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 13:
If we divide 410 by 61, we get 6 and a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 3691.9508196
Deduct 366 from 410 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 14:
61 can be fit into 440 7 times, resulting in a remainder of 13.
The next digit of our result is 7. 
Result so far: 3691.95081967
If we take 427 away from 440, 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.

After the division, we end up with 3691.95081967 and a remainder of 1.3e-08.