We're dividing 52358750 by 210 
The aim is to understand the frequency of 210 in 52358750.

Advancing to step 1:
5 divided by 210 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 210

Let's proceed to step 2:
When dividing 52 by 210, we get 0 with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Grab the next digit (3) from the dividend, add it to 52, then carry on: 523 / 210

Step 3:
523 divided by 210 is 2 with a remainder of 103.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 420 from 523, we get 103.
Take the next digit (5) from the dividend and append it to 103, then repeat: 1035 / 210

Moving on to step 4:
210 goes into 1035 4 times with a remainder of 195.
Write down 4 as next digit of the result. 
Result so far: 24.0
Subtract 840 from 1035 to get 195.
Append the next digit (8) from the dividend to 195 and continue with: 1958 / 210

Advancing to step 5:
If we divide 1958 by 210, we get 9 and a remainder of 68.
Put 9 as the next digit of the answer. 
Result so far: 249.0
Subtracting 1890 from 1958 leaves us with 68.
Take the next digit (7) from the dividend and append it to 68, then repeat: 687 / 210

Advancing to step 6:
210 goes into 687 3 times with a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 2493.0
Subtract 630 from 687 to get 57.
Append the next digit (5) from the dividend to 57 and continue with: 575 / 210

Moving on to step 7:
When dividing 575 by 210, we get 2 with a remainder of 155.
Record the quotient 2 as the next digit in the result. 
Result so far: 24932.0
If we take 420 away from 575, we end up with 155.
Grab the next digit (0) from the dividend, add it to 155, then carry on: 1550 / 210

Moving on to step 8:
If we divide 1550 by 210, we get 7 and a remainder of 80.
The number 7 becomes the next digit in our result. 
Result so far: 249327.0
Subtract 1470 from 1550 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 9:
800 divided by 210 is 3 with a remainder of 170.
The number 3 becomes the next digit in our result. 
Result so far: 249327.3
If we subtract 630 from 800, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Going ahead to step 10:
The number 210 fits into 1700 8 times, leaving a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 249327.38
The remainder is 20 after subtracting 1680 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 11:
The number 210 fits into 200 0 times, leaving a remainder of 200.
The next digit of our result is 0. 
Result so far: 249327.38
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 12:
2000 divided by 210 is 9 with a remainder of 110.
The next digit of our result is 9. 
Result so far: 249327.3809
The remainder is 110 after subtracting 1890 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 13:
When dividing 1100 by 210, we get 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 249327.38095
If we take 1050 away from 1100, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 14:
If we divide 500 by 210, we get 2 and a remainder of 80.
Record the quotient 2 as the next digit in the result. 
Result so far: 249327.380952
Deduct 420 from 500 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 15:
800 divided by 210 is 3 with a remainder of 170.
The number 3 becomes the next digit in our result. 
Result so far: 249327.3809523
The remainder is 170 after subtracting 630 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 16:
The number 210 fits into 1700 8 times, leaving a remainder of 20.
The next digit of our result is 8. 
Result so far: 249327.38095238
Deduct 1680 from 1700 and we're left 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.

In conclusion, the division gives 249327.38095238 with a balance of 2e-08.