266571 divided by 52 
The aim is to understand the frequency of 52 in 266571.

On to step 1:
The number 52 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 52

Moving on to step 2:
When dividing 26 by 52, we get 0 with a remainder of 26.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 26 to get 26.
Append the next digit (6) from the dividend to 26 and continue with: 266 / 52

Advancing to step 3:
If we divide 266 by 52, we get 5 and a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 260 from 266 leaves us with 6.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 52

Advancing to step 4:
The number 52 fits into 65 1 times, leaving a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
Subtracting 52 from 65 leaves us with 13.
Fetch the next digit (7) from the dividend, attach it to 13 and continue: 137 / 52

Moving on to step 5:
52 can be fit into 137 2 times, resulting in a remainder of 33.
Write down 2 as next digit of the result. 
Result so far: 512.0
If we take 104 away from 137, we end up with 33.
Include the next digit (1) from the dividend after 33, then repeat: 331 / 52

Advancing to step 6:
If we divide 331 by 52, we get 6 and a remainder of 19.
Write down 6 as next digit of the result. 
Result so far: 5126.0
Subtract 312 from 331 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 7:
52 can be fit into 190 3 times, resulting in a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 5126.3
Subtracting 156 from 190 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 8:
The number 52 fits into 340 6 times, leaving a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 5126.36
The remainder is 28 after subtracting 312 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
52 goes into 280 5 times with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 5126.365
Subtracting 260 from 280 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
52 goes into 200 3 times with a remainder of 44.
Use 3 as the next digit of our solution. 
Result so far: 5126.3653
Subtracting 156 from 200 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 11:
52 goes into 440 8 times with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 5126.36538
Subtracting 416 from 440 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 12:
The number 52 fits into 240 4 times, leaving a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 5126.365384
If we subtract 208 from 240, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 13:
The number 52 fits into 320 6 times, leaving a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 5126.3653846
If we take 312 away from 320, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 14:
When dividing 80 by 52, we get 1 with a remainder of 28.
The next digit of our result is 1. 
Result so far: 5126.36538461
Subtracting 52 from 80 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final outcome is 5126.36538461, with a leftover of 2.8e-08.