We're dividing 651897 by 53 
The aim is to understand the frequency of 53 in 651897.

Moving on to step 1:
53 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 53

Going ahead to step 2:
When dividing 65 by 53, we get 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 53 from 65 to get 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 53

Let's proceed to step 3:
53 can be fit into 121 2 times, resulting in a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 15 after subtracting 106 from 121.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 53

Let's proceed to step 4:
53 can be fit into 158 2 times, resulting in a remainder of 52.
The next digit of our result is 2. 
Result so far: 122.0
Subtracting 106 from 158 leaves us with 52.
Take the next digit (9) from the dividend and append it to 52, then repeat: 529 / 53

Going ahead to step 5:
53 goes into 529 9 times with a remainder of 52.
Record the quotient 9 as the next digit in the result. 
Result so far: 1229.0
Deduct 477 from 529 and we're left with 52.
Include the next digit (7) from the dividend after 52, then repeat: 527 / 53

On to step 6:
If we divide 527 by 53, we get 9 and a remainder of 50.
Write down 9 as next digit of the result. 
Result so far: 12299.0
If we take 477 away from 527, we end up 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.

Step 7:
53 goes into 500 9 times with a remainder of 23.
Write down 9 as next digit of the result. 
Result so far: 12299.9
Subtracting 477 from 500 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 8:
When dividing 230 by 53, we get 4 with a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 12299.94
Deduct 212 from 230 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 9:
The number 53 fits into 180 3 times, leaving a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 12299.943
The remainder is 21 after subtracting 159 from 180.
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.
Put 3 as the next digit of the answer. 
Result so far: 12299.9433
Subtracting 159 from 210 leaves us with 51.
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 12299.9433, with a leftover of 0.00051.