621599 divided by 52 
The aim is to understand the frequency of 52 in 621599.

Moving on to step 1:
When dividing 6 by 52, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 52

Step 2:
62 divided by 52 is 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 52 from 62 leaves us with 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 52

Going ahead to step 3:
The number 52 fits into 101 1 times, leaving a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 52 from 101 leaves us with 49.
Fetch the next digit (5) from the dividend, attach it to 49 and continue: 495 / 52

On to step 4:
If we divide 495 by 52, we get 9 and a remainder of 27.
Put 9 as the next digit of the answer. 
Result so far: 119.0
If we take 468 away from 495, we end up with 27.
Bring next digit (9) of the dividend behind the 27 and repeat the process: 279 / 52

Let's proceed to step 5:
If we divide 279 by 52, we get 5 and a remainder of 19.
The number 5 becomes the next digit in our result. 
Result so far: 1195.0
If we take 260 away from 279, we end up with 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 52

Advancing to step 6:
If we divide 199 by 52, we get 3 and a remainder of 43.
Put 3 as the next digit of the answer. 
Result so far: 11953.0
If we take 156 away from 199, 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.

Moving on to step 7:
If we divide 430 by 52, we get 8 and a remainder of 14.
The next digit of our result is 8. 
Result so far: 11953.8
If we subtract 416 from 430, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
52 can be fit into 140 2 times, resulting in a remainder of 36.
The next digit of our result is 2. 
Result so far: 11953.82
Subtracting 104 from 140 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 9:
If we divide 360 by 52, we get 6 and a remainder of 48.
The number 6 becomes the next digit in our result. 
Result so far: 11953.826
Deduct 312 from 360 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 10:
When dividing 480 by 52, we get 9 with a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 11953.8269
The remainder is 12 after subtracting 468 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 11:
The number 52 fits into 120 2 times, leaving a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 11953.82692
If we take 104 away from 120, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
160 divided by 52 is 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 11953.826923
If we take 156 away from 160, 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.

Going ahead to step 13:
If we divide 40 by 52, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 11953.826923
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 14:
The number 52 fits into 400 7 times, leaving a remainder of 36.
The next digit of our result is 7. 
Result so far: 11953.82692307
The remainder is 36 after subtracting 364 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final result is 11953.82692307 with a remainder of 3.6e-08.