We look at the division of 806217 by 61 
The aim is to understand the frequency of 61 in 806217.

On to step 1:
The number 61 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 61

Step 2:
When dividing 80 by 61, we get 1 with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 61 from 80 leaves us with 19.
Include the next digit (6) from the dividend after 19, then repeat: 196 / 61

Moving on to step 3:
196 divided by 61 is 3 with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Deduct 183 from 196 and we're left with 13.
Append the next digit (2) from the dividend to 13 and continue with: 132 / 61

Let's proceed to step 4:
61 goes into 132 2 times with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 132.0
Subtracting 122 from 132 leaves us with 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 61

Moving on to step 5:
The number 61 fits into 101 1 times, leaving a remainder of 40.
Use 1 as the next digit of our solution. 
Result so far: 1321.0
If we subtract 61 from 101, we get 40.
Fetch the next digit (7) from the dividend, attach it to 40 and continue: 407 / 61

Advancing to step 6:
61 can be fit into 407 6 times, resulting in a remainder of 41.
Put 6 as the next digit of the answer. 
Result so far: 13216.0
If we subtract 366 from 407, we get 41.
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 7:
If we divide 410 by 61, we get 6 and a remainder of 44.
The next digit of our result is 6. 
Result so far: 13216.6
If we take 366 away from 410, we end up 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.

On to step 8:
When dividing 440 by 61, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 13216.67
Subtract 427 from 440 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
The number 61 fits into 130 2 times, leaving a remainder of 8.
The next digit of our result is 2. 
Result so far: 13216.672
Deduct 122 from 130 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
80 divided by 61 is 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 13216.6721
Subtracting 61 from 80 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 11:
The number 61 fits into 190 3 times, leaving a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 13216.67213
The remainder is 7 after subtracting 183 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 12:
61 goes into 70 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 13216.672131
The remainder is 9 after subtracting 61 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 13:
61 goes into 90 1 times with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 13216.6721311
The remainder is 29 after subtracting 61 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

After the division, we end up with 13216.6721311 and a remainder of 2.9e-07.