We look at the division of 128770 by 61 
The aim is to understand the frequency of 61 in 128770.

Step 1:
When dividing 1 by 61, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 61

Advancing to step 2:
When dividing 12 by 61, we get 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 61

On to step 3:
The number 61 fits into 128 2 times, leaving a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 122 from 128 leaves us with 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 61

Moving on to step 4:
61 goes into 67 1 times with a remainder of 6.
The next digit of our result is 1. 
Result so far: 21.0
If we subtract 61 from 67, we get 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 61

Going ahead to step 5:
67 divided by 61 is 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 211.0
Subtract 61 from 67 to get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 61

Advancing to step 6:
61 can be fit into 60 0 times, resulting in a remainder of 60.
The next digit of our result is 0. 
Result so far: 2110.0
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 7:
The number 61 fits into 600 9 times, leaving a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 2110.9
The remainder is 51 after subtracting 549 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 8:
When dividing 510 by 61, we get 8 with a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 2110.98
If we take 488 away from 510, we end up 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 9:
The number 61 fits into 220 3 times, leaving a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 2110.983
If we subtract 183 from 220, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 10:
The number 61 fits into 370 6 times, leaving a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 2110.9836
If we take 366 away from 370, we end up 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.

Going ahead to step 11:
If we divide 40 by 61, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 2110.9836
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
When dividing 400 by 61, we get 6 with a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 2110.983606
If we subtract 366 from 400, we 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.

Moving on to step 13:
340 divided by 61 is 5 with a remainder of 35.
The next digit of our result is 5. 
Result so far: 2110.9836065
If we subtract 305 from 340, we get 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 14:
350 divided by 61 is 5 with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 2110.98360655
If we take 305 away from 350, we end up 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.

The quotient of the division is 2110.98360655, and the remainder is 4.5e-08.