We look at the division of 576644 by 53 
The aim is to understand the frequency of 53 in 576644.

Moving on to step 1:
5 divided by 53 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 53

Advancing to step 2:
53 can be fit into 57 1 times, resulting in a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 53 from 57 leaves us with 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 53

Going ahead to step 3:
If we divide 46 by 53, we get 0 and a remainder of 46.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 46 to get 46.
Take the next digit (6) from the dividend and append it to 46, then repeat: 466 / 53

Going ahead to step 4:
53 can be fit into 466 8 times, resulting in a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 108.0
If we take 424 away from 466, we end up with 42.
Include the next digit (4) from the dividend after 42, then repeat: 424 / 53

Step 5:
When dividing 424 by 53, we get 8 with a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 1088.0
If we take 424 away from 424, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 53

Moving on to step 6:
When dividing 4 by 53, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 10880.0
If we take 0 away from 4, 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.

On to step 7:
40 divided by 53 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 10880.0
The remainder is 40 after subtracting 0 from 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 8:
The number 53 fits into 400 7 times, leaving a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 10880.07
If we take 371 away from 400, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 9:
If we divide 290 by 53, we get 5 and a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 10880.075
If we subtract 265 from 290, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 10:
53 goes into 250 4 times with a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 10880.0754
Subtracting 212 from 250 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
If we divide 380 by 53, we get 7 and a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 10880.07547
If we subtract 371 from 380, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 12:
If we divide 90 by 53, we get 1 and a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 10880.075471
If we subtract 53 from 90, 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.

Let's proceed to step 13:
When dividing 370 by 53, we get 6 with a remainder of 52.
Write down 6 as next digit of the result. 
Result so far: 10880.0754716
Subtract 318 from 370 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 14:
When dividing 520 by 53, we get 9 with a remainder of 43.
Put 9 as the next digit of the answer. 
Result so far: 10880.07547169
If we take 477 away from 520, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

After the division, we end up with 10880.07547169 and a remainder of 4.3e-08.