304290 divided by 52 
The aim is to understand the frequency of 52 in 304290.

On to step 1:
3 divided by 52 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 52

Going ahead to step 2:
The number 52 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Append the next digit (4) from the dividend to 30 and continue with: 304 / 52

On to step 3:
52 can be fit into 304 5 times, resulting in a remainder of 44.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 260 from 304 to get 44.
Grab the next digit (2) from the dividend, add it to 44, then carry on: 442 / 52

Advancing to step 4:
When dividing 442 by 52, we get 8 with a remainder of 26.
Put 8 as the next digit of the answer. 
Result so far: 58.0
If we take 416 away from 442, we end up with 26.
Fetch the next digit (9) from the dividend, attach it to 26 and continue: 269 / 52

Advancing to step 5:
52 can be fit into 269 5 times, resulting in a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 585.0
Subtract 260 from 269 to get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 52

Let's proceed to step 6:
The number 52 fits into 90 1 times, leaving a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 5851.0
The remainder is 38 after subtracting 52 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 7:
380 divided by 52 is 7 with a remainder of 16.
The number 7 becomes the next digit in our result. 
Result so far: 5851.7
The remainder is 16 after subtracting 364 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 8:
52 goes into 160 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 5851.73
Deduct 156 from 160 and we're left 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 9:
The number 52 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 5851.73
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.

Step 10:
52 can be fit into 400 7 times, resulting in a remainder of 36.
Use 7 as the next digit of our solution. 
Result so far: 5851.7307
Deduct 364 from 400 and we're left 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.

Going ahead to step 11:
360 divided by 52 is 6 with a remainder of 48.
The next digit of our result is 6. 
Result so far: 5851.73076
If we subtract 312 from 360, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 12:
The number 52 fits into 480 9 times, leaving a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 5851.730769
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.

Moving on to step 13:
When dividing 120 by 52, we get 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 5851.7307692
Subtract 104 from 120 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 14:
If we divide 160 by 52, we get 3 and a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 5851.73076923
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.

The final outcome is 5851.73076923, with a leftover of 4e-09.