612412 ÷ 53 
The aim is to understand the frequency of 53 in 612412.

On to step 1:
The number 53 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 53

Let's proceed to step 2:
The number 53 fits into 61 1 times, leaving a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 53 from 61 and we're left with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 53

Step 3:
82 divided by 53 is 1 with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtract 53 from 82 to get 29.
Append the next digit (4) from the dividend to 29 and continue with: 294 / 53

Let's proceed to step 4:
If we divide 294 by 53, we get 5 and a remainder of 29.
Record the quotient 5 as the next digit in the result. 
Result so far: 115.0
Subtracting 265 from 294 leaves us with 29.
Append the next digit (1) from the dividend to 29 and continue with: 291 / 53

Advancing to step 5:
If we divide 291 by 53, we get 5 and a remainder of 26.
Use 5 as the next digit of our solution. 
Result so far: 1155.0
The remainder is 26 after subtracting 265 from 291.
Take the next digit (2) from the dividend and append it to 26, then repeat: 262 / 53

On to step 6:
53 can be fit into 262 4 times, resulting in a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 11554.0
Subtracting 212 from 262 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 7:
53 goes into 500 9 times with a remainder of 23.
The number 9 becomes the next digit in our result. 
Result so far: 11554.9
If we subtract 477 from 500, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 8:
The number 53 fits into 230 4 times, leaving a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 11554.94
The remainder is 18 after subtracting 212 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
When dividing 180 by 53, we get 3 with a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 11554.943
Subtract 159 from 180 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 10:
53 can be fit into 210 3 times, resulting in a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 11554.9433
The remainder is 51 after subtracting 159 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final outcome is 11554.9433, with a leftover of 0.00051.