686311 ÷ 52 
The aim is to understand the frequency of 52 in 686311.

On to step 1:
The number 52 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 52

Going ahead to step 2:
68 divided by 52 is 1 with a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 52 from 68, we get 16.
Append the next digit (6) from the dividend to 16 and continue with: 166 / 52

Advancing to step 3:
If we divide 166 by 52, we get 3 and a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 13.0
The remainder is 10 after subtracting 156 from 166.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 52

Moving on to step 4:
The number 52 fits into 103 1 times, leaving a remainder of 51.
The number 1 becomes the next digit in our result. 
Result so far: 131.0
Subtract 52 from 103 to get 51.
Grab the next digit (1) from the dividend, add it to 51, then carry on: 511 / 52

Going ahead to step 5:
If we divide 511 by 52, we get 9 and a remainder of 43.
Use 9 as the next digit of our solution. 
Result so far: 1319.0
If we subtract 468 from 511, we get 43.
Fetch the next digit (1) from the dividend, attach it to 43 and continue: 431 / 52

On to step 6:
If we divide 431 by 52, we get 8 and a remainder of 15.
The next digit of our result is 8. 
Result so far: 13198.0
If we subtract 416 from 431, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 7:
When dividing 150 by 52, we get 2 with a remainder of 46.
The number 2 becomes the next digit in our result. 
Result so far: 13198.2
Subtract 104 from 150 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 8:
The number 52 fits into 460 8 times, leaving a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 13198.28
Deduct 416 from 460 and we're left 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.

Let's proceed to step 9:
440 divided by 52 is 8 with a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 13198.288
Deduct 416 from 440 and we're left 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.

The final outcome is 13198.288, with a leftover of 0.0024.