6388906 ÷ 209 
The aim is to understand the frequency of 209 in 6388906.

Let's proceed to step 1:
209 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 209

Step 2:
The number 209 fits into 63 0 times, leaving a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Grab the next digit (8) from the dividend, add it to 63, then carry on: 638 / 209

Moving on to step 3:
When dividing 638 by 209, we get 3 with a remainder of 11.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 627 from 638 to get 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 209

Step 4:
118 divided by 209 is 0 with a remainder of 118.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
If we take 0 away from 118, we end up with 118.
Bring next digit (9) of the dividend behind the 118 and repeat the process: 1189 / 209

Moving on to step 5:
1189 divided by 209 is 5 with a remainder of 144.
Put 5 as the next digit of the answer. 
Result so far: 305.0
The remainder is 144 after subtracting 1045 from 1189.
Bring next digit (0) of the dividend behind the 144 and repeat the process: 1440 / 209

Let's proceed to step 6:
If we divide 1440 by 209, we get 6 and a remainder of 186.
Record the quotient 6 as the next digit in the result. 
Result so far: 3056.0
Subtracting 1254 from 1440 leaves us with 186.
Take the next digit (6) from the dividend and append it to 186, then repeat: 1866 / 209

On to step 7:
1866 divided by 209 is 8 with a remainder of 194.
Put 8 as the next digit of the answer. 
Result so far: 30568.0
Subtract 1672 from 1866 to get 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

On to step 8:
When dividing 1940 by 209, we get 9 with a remainder of 59.
Record the quotient 9 as the next digit in the result. 
Result so far: 30568.9
Subtract 1881 from 1940 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 9:
209 can be fit into 590 2 times, resulting in a remainder of 172.
The number 2 becomes the next digit in our result. 
Result so far: 30568.92
The remainder is 172 after subtracting 418 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Advancing to step 10:
The number 209 fits into 1720 8 times, leaving a remainder of 48.
Record the quotient 8 as the next digit in the result. 
Result so far: 30568.928
If we subtract 1672 from 1720, 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.

Let's proceed to step 11:
209 goes into 480 2 times with a remainder of 62.
Write down 2 as next digit of the result. 
Result so far: 30568.9282
If we subtract 418 from 480, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 12:
The number 209 fits into 620 2 times, leaving a remainder of 202.
The next digit of our result is 2. 
Result so far: 30568.92822
The remainder is 202 after subtracting 418 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

The final result is 30568.92822 with a remainder of 0.000202.