We're dividing 851684 by 61 
The aim is to understand the frequency of 61 in 851684.

On to step 1:
When dividing 8 by 61, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 61

Let's proceed to step 2:
If we divide 85 by 61, we get 1 and a remainder of 24.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 61 from 85 and we're left with 24.
Append the next digit (1) from the dividend to 24 and continue with: 241 / 61

Let's proceed to step 3:
61 goes into 241 3 times with a remainder of 58.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 183 away from 241, we end up with 58.
Include the next digit (6) from the dividend after 58, then repeat: 586 / 61

Advancing to step 4:
If we divide 586 by 61, we get 9 and a remainder of 37.
Write down 9 as next digit of the result. 
Result so far: 139.0
Subtract 549 from 586 to get 37.
Append the next digit (8) from the dividend to 37 and continue with: 378 / 61

Going ahead to step 5:
378 divided by 61 is 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 1396.0
If we take 366 away from 378, we end up with 12.
Include the next digit (4) from the dividend after 12, then repeat: 124 / 61

Step 6:
61 goes into 124 2 times with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 13962.0
The remainder is 2 after subtracting 122 from 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
If we divide 20 by 61, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 13962.0
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
When dividing 200 by 61, we get 3 with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 13962.03
Deduct 183 from 200 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 9:
When dividing 170 by 61, we get 2 with a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 13962.032
If we subtract 122 from 170, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 10:
480 divided by 61 is 7 with a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 13962.0327
If we subtract 427 from 480, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 11:
530 divided by 61 is 8 with a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 13962.03278
The remainder is 42 after subtracting 488 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 12:
420 divided by 61 is 6 with a remainder of 54.
Put 6 as the next digit of the answer. 
Result so far: 13962.032786
Deduct 366 from 420 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 13:
When dividing 540 by 61, we get 8 with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 13962.0327868
If we subtract 488 from 540, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 14:
61 can be fit into 520 8 times, resulting in a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 13962.03278688
If we subtract 488 from 520, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 13962.03278688, with a leftover of 3.2e-08.