We look at the division of 860017 by 61 
The aim is to understand the frequency of 61 in 860017.

On to step 1:
The number 61 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 61

Going ahead to step 2:
61 can be fit into 86 1 times, resulting in a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 61 away from 86, we end up with 25.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 61

Let's proceed to step 3:
61 goes into 250 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtracting 244 from 250 leaves us with 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 61

Advancing to step 4:
61 can be fit into 60 0 times, resulting in a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 140.0
Deduct 0 from 60 and we're left with 60.
Grab the next digit (1) from the dividend, add it to 60, then carry on: 601 / 61

Going ahead to step 5:
The number 61 fits into 601 9 times, leaving a remainder of 52.
Put 9 as the next digit of the answer. 
Result so far: 1409.0
If we take 549 away from 601, we end up with 52.
Bring next digit (7) of the dividend behind the 52 and repeat the process: 527 / 61

Moving on to step 6:
61 can be fit into 527 8 times, resulting in a remainder of 39.
Use 8 as the next digit of our solution. 
Result so far: 14098.0
If we subtract 488 from 527, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
If we divide 390 by 61, we get 6 and a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 14098.6
Deduct 366 from 390 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 8:
61 goes into 240 3 times with a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 14098.63
Subtract 183 from 240 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 9:
61 can be fit into 570 9 times, resulting in a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 14098.639
The remainder is 21 after subtracting 549 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 10:
61 can be fit into 210 3 times, resulting in a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 14098.6393
If we take 183 away from 210, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 11:
When dividing 270 by 61, we get 4 with a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 14098.63934
If we take 244 away from 270, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 12:
260 divided by 61 is 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 14098.639344
Subtract 244 from 260 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 14098.639344, and the remainder is 1.6e-06.