We're dividing 21507702 by 206 
The aim is to understand the frequency of 206 in 21507702.

Step 1:
206 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 206

Step 2:
206 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 206

Advancing to step 3:
If we divide 215 by 206, we get 1 and a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 206 from 215 and we're left with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 206

Advancing to step 4:
If we divide 90 by 206, we get 0 and a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 90, we get 90.
Take the next digit (7) from the dividend and append it to 90, then repeat: 907 / 206

Going ahead to step 5:
907 divided by 206 is 4 with a remainder of 83.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
Subtract 824 from 907 to get 83.
Fetch the next digit (7) from the dividend, attach it to 83 and continue: 837 / 206

Moving on to step 6:
206 goes into 837 4 times with a remainder of 13.
The number 4 becomes the next digit in our result. 
Result so far: 1044.0
Subtract 824 from 837 to get 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 206

Moving on to step 7:
206 can be fit into 130 0 times, resulting in a remainder of 130.
Record the quotient 0 as the next digit in the result. 
Result so far: 10440.0
Subtracting 0 from 130 leaves us with 130.
Fetch the next digit (2) from the dividend, attach it to 130 and continue: 1302 / 206

Let's proceed to step 8:
206 can be fit into 1302 6 times, resulting in a remainder of 66.
The number 6 becomes the next digit in our result. 
Result so far: 104406.0
Subtract 1236 from 1302 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 9:
If we divide 660 by 206, we get 3 and a remainder of 42.
The next digit of our result is 3. 
Result so far: 104406.3
Subtracting 618 from 660 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 10:
When dividing 420 by 206, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 104406.32
If we subtract 412 from 420, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 11:
If we divide 80 by 206, we get 0 and a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 104406.32
Subtracting 0 from 80 leaves us 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.

Going ahead to step 12:
206 goes into 800 3 times with a remainder of 182.
Put 3 as the next digit of the answer. 
Result so far: 104406.3203
Subtract 618 from 800 to get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Advancing to step 13:
206 goes into 1820 8 times with a remainder of 172.
Write down 8 as next digit of the result. 
Result so far: 104406.32038
Deduct 1648 from 1820 and we're left with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Going ahead to step 14:
When dividing 1720 by 206, we get 8 with a remainder of 72.
The next digit of our result is 8. 
Result so far: 104406.320388
If we subtract 1648 from 1720, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 104406.320388 and a remainder of 7.2e-06.