We look at the division of 865049 by 61 
The aim is to understand the frequency of 61 in 865049.

Advancing 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
If we take 0 away from 8, we end up with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 61

On to step 2:
When dividing 86 by 61, we get 1 with a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 61 away from 86, we end up with 25.
Include the next digit (5) from the dividend after 25, then repeat: 255 / 61

Advancing to step 3:
61 goes into 255 4 times with a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we subtract 244 from 255, we get 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 61

Going ahead to step 4:
When dividing 110 by 61, we get 1 with a remainder of 49.
Record the quotient 1 as the next digit in the result. 
Result so far: 141.0
The remainder is 49 after subtracting 61 from 110.
Include the next digit (4) from the dividend after 49, then repeat: 494 / 61

Going ahead to step 5:
When dividing 494 by 61, we get 8 with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 1418.0
The remainder is 6 after subtracting 488 from 494.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 61

Advancing to step 6:
The number 61 fits into 69 1 times, leaving a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 14181.0
The remainder is 8 after subtracting 61 from 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 7:
61 goes into 80 1 times with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 14181.1
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.

Going ahead to step 8:
190 divided by 61 is 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 14181.13
If we take 183 away from 190, we end up with 7.
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 9:
61 can be fit into 70 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 14181.131
Subtracting 61 from 70 leaves us with 9.
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 10:
61 goes into 90 1 times with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 14181.1311
Subtracting 61 from 90 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The final outcome is 14181.1311, with a leftover of 0.00029.