We divide 309012 by 61
The aim is to understand the frequency of 61 in 309012.

On to step 1:
If we divide 3 by 61, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 61

Going ahead to step 2:
When dividing 30 by 61, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Include the next digit (9) from the dividend after 30, then repeat: 309 / 61

Going ahead to step 3:
61 goes into 309 5 times with a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 4 after subtracting 305 from 309.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 61

Going ahead to step 4:
If we divide 40 by 61, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 50.0
If we subtract 0 from 40, we get 40.
Include the next digit (1) from the dividend after 40, then repeat: 401 / 61

Step 5:
When dividing 401 by 61, we get 6 with a remainder of 35.
Record the quotient 6 as the next digit in the result. 
Result so far: 506.0
If we take 366 away from 401, we end up with 35.
Take the next digit (2) from the dividend and append it to 35, then repeat: 352 / 61

Going ahead to step 6:
61 goes into 352 5 times with a remainder of 47.
The next digit of our result is 5. 
Result so far: 5065.0
Deduct 305 from 352 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 7:
61 can be fit into 470 7 times, resulting in a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 5065.7
If we subtract 427 from 470, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 8:
61 goes into 430 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 5065.77
If we take 427 away from 430, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Our division results in 5065.77 with a remaining 0.003.