We're dividing 302112 by 61 
The aim is to understand the frequency of 61 in 302112.

On to step 1:
61 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 61

Advancing to step 2:
The number 61 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Include the next digit (2) from the dividend after 30, then repeat: 302 / 61

Step 3:
61 can be fit into 302 4 times, resulting in a remainder of 58.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 244 from 302 and we're left with 58.
Append the next digit (1) from the dividend to 58 and continue with: 581 / 61

Going ahead to step 4:
When dividing 581 by 61, we get 9 with a remainder of 32.
Use 9 as the next digit of our solution. 
Result so far: 49.0
Deduct 549 from 581 and we're left with 32.
Take the next digit (1) from the dividend and append it to 32, then repeat: 321 / 61

Going ahead to step 5:
When dividing 321 by 61, we get 5 with a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 495.0
The remainder is 16 after subtracting 305 from 321.
Grab the next digit (2) from the dividend, add it to 16, then carry on: 162 / 61

Advancing to step 6:
If we divide 162 by 61, we get 2 and a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 4952.0
Deduct 122 from 162 and we're left 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.

Going ahead to step 7:
If we divide 400 by 61, we get 6 and a remainder of 34.
Put 6 as the next digit of the answer. 
Result so far: 4952.6
The remainder is 34 after subtracting 366 from 400.
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 8:
If we divide 340 by 61, we get 5 and a remainder of 35.
The next digit of our result is 5. 
Result so far: 4952.65
If we take 305 away from 340, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 9:
61 can be fit into 350 5 times, resulting in a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 4952.655
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.

After the division, we end up with 4952.655 and a remainder of 0.0045.