Let's divide 208250 by 21
The aim is to understand the frequency of 21 in 208250.

Going ahead to step 1:
The number 21 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 (0) from the dividend and append it to 2, then repeat: 20 / 21

On to step 2:
If we divide 20 by 21, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Bring next digit (8) of the dividend behind the 20 and repeat the process: 208 / 21

Let's proceed to step 3:
21 goes into 208 9 times with a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 9.0
The remainder is 19 after subtracting 189 from 208.
Fetch the next digit (2) from the dividend, attach it to 19 and continue: 192 / 21

Going ahead to step 4:
21 goes into 192 9 times with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 99.0
The remainder is 3 after subtracting 189 from 192.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 21

Let's proceed to step 5:
The number 21 fits into 35 1 times, leaving a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 991.0
If we subtract 21 from 35, we get 14.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 21

On to step 6:
If we divide 140 by 21, we get 6 and a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 9916.0
The remainder is 14 after subtracting 126 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
21 can be fit into 140 6 times, resulting in a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 9916.6
If we take 126 away from 140, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 8:
21 goes into 140 6 times with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 9916.66
The remainder is 14 after subtracting 126 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

In conclusion, the division gives 9916.66 with a balance of 0.014.