We look at the division of 752385 by 53 
The aim is to understand the frequency of 53 in 752385.

On to step 1:
When dividing 7 by 53, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 53

Moving on to step 2:
53 can be fit into 75 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 53 from 75 leaves us with 22.
Fetch the next digit (2) from the dividend, attach it to 22 and continue: 222 / 53

On to step 3:
222 divided by 53 is 4 with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we subtract 212 from 222, we get 10.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 53

Advancing to step 4:
53 can be fit into 103 1 times, resulting in a remainder of 50.
Put 1 as the next digit of the answer. 
Result so far: 141.0
Deduct 53 from 103 and we're left with 50.
Append the next digit (8) from the dividend to 50 and continue with: 508 / 53

On to step 5:
508 divided by 53 is 9 with a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 1419.0
Deduct 477 from 508 and we're left with 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 53

On to step 6:
315 divided by 53 is 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 14195.0
The remainder is 50 after subtracting 265 from 315.
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:
If we divide 500 by 53, we get 9 and a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 14195.9
Subtract 477 from 500 to 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.

Going ahead to step 8:
The number 53 fits into 230 4 times, leaving a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 14195.94
If we subtract 212 from 230, we get 18.
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:
If we divide 180 by 53, we get 3 and a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 14195.943
Subtracting 159 from 180 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 10:
210 divided by 53 is 3 with a remainder of 51.
Record the quotient 3 as the next digit in the result. 
Result so far: 14195.9433
If we take 159 away from 210, we end up 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 quotient of the division is 14195.9433, and the remainder is 0.00051.