We look at the division of 668826 by 61 
The aim is to understand the frequency of 61 in 668826.

Advancing to step 1:
The number 61 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 61

Step 2:
When dividing 66 by 61, we get 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 61 away from 66, we end up with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 61

Advancing to step 3:
When dividing 58 by 61, we get 0 with a remainder of 58.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 58, we end up with 58.
Append the next digit (8) from the dividend to 58 and continue with: 588 / 61

Advancing to step 4:
If we divide 588 by 61, we get 9 and a remainder of 39.
The number 9 becomes the next digit in our result. 
Result so far: 109.0
Deduct 549 from 588 and we're left with 39.
Bring next digit (2) of the dividend behind the 39 and repeat the process: 392 / 61

On to step 5:
If we divide 392 by 61, we get 6 and a remainder of 26.
Put 6 as the next digit of the answer. 
Result so far: 1096.0
If we subtract 366 from 392, we get 26.
Fetch the next digit (6) from the dividend, attach it to 26 and continue: 266 / 61

Advancing to step 6:
When dividing 266 by 61, we get 4 with a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 10964.0
Subtracting 244 from 266 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 7:
61 goes into 220 3 times with a remainder of 37.
The next digit of our result is 3. 
Result so far: 10964.3
If we take 183 away from 220, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 8:
61 can be fit into 370 6 times, resulting in a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 10964.36
Deduct 366 from 370 and we're left with 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 9:
61 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 10964.36
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
61 goes into 400 6 times with a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 10964.3606
Subtract 366 from 400 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 11:
If we divide 340 by 61, we get 5 and a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 10964.36065
If we take 305 away from 340, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 12:
61 goes into 350 5 times with a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 10964.360655
Deduct 305 from 350 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

In conclusion, the division gives 10964.360655 with a balance of 4.5e-06.