We look at the division of 90205100 by 207 
The aim is to understand the frequency of 207 in 90205100.

Let's proceed to step 1:
If we divide 9 by 207, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 207

On to step 2:
If we divide 90 by 207, we get 0 and a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Append the next digit (2) from the dividend to 90 and continue with: 902 / 207

Going ahead to step 3:
When dividing 902 by 207, we get 4 with a remainder of 74.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 828 from 902 and we're left with 74.
Include the next digit (0) from the dividend after 74, then repeat: 740 / 207

On to step 4:
207 goes into 740 3 times with a remainder of 119.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
Subtracting 621 from 740 leaves us with 119.
Take the next digit (5) from the dividend and append it to 119, then repeat: 1195 / 207

Let's proceed to step 5:
When dividing 1195 by 207, we get 5 with a remainder of 160.
The number 5 becomes the next digit in our result. 
Result so far: 435.0
Subtracting 1035 from 1195 leaves us with 160.
Take the next digit (1) from the dividend and append it to 160, then repeat: 1601 / 207

On to step 6:
The number 207 fits into 1601 7 times, leaving a remainder of 152.
Record the quotient 7 as the next digit in the result. 
Result so far: 4357.0
If we subtract 1449 from 1601, we get 152.
Include the next digit (0) from the dividend after 152, then repeat: 1520 / 207

On to step 7:
The number 207 fits into 1520 7 times, leaving a remainder of 71.
The next digit of our result is 7. 
Result so far: 43577.0
Subtract 1449 from 1520 to get 71.
Append the next digit (0) from the dividend to 71 and continue with: 710 / 207

Step 8:
207 goes into 710 3 times with a remainder of 89.
Put 3 as the next digit of the answer. 
Result so far: 435773.0
If we take 621 away from 710, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Advancing to step 9:
207 can be fit into 890 4 times, resulting in a remainder of 62.
Write down 4 as next digit of the result. 
Result so far: 435773.4
Subtract 828 from 890 to 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.

Advancing to step 10:
The number 207 fits into 620 2 times, leaving a remainder of 206.
The next digit of our result is 2. 
Result so far: 435773.42
Subtract 414 from 620 to get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Going ahead to step 11:
2060 divided by 207 is 9 with a remainder of 197.
The number 9 becomes the next digit in our result. 
Result so far: 435773.429
Subtracting 1863 from 2060 leaves us with 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Let's proceed to step 12:
1970 divided by 207 is 9 with a remainder of 107.
Write down 9 as next digit of the result. 
Result so far: 435773.4299
The remainder is 107 after subtracting 1863 from 1970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

After the division, we end up with 435773.4299 and a remainder of 0.00107.