87201126 ÷ 204 
The aim is to understand the frequency of 204 in 87201126.

Let's proceed to step 1:
If we divide 8 by 204, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 204

Going ahead to step 2:
The number 204 fits into 87 0 times, leaving a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Grab the next digit (2) from the dividend, add it to 87, then carry on: 872 / 204

Step 3:
If we divide 872 by 204, we get 4 and a remainder of 56.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 816 from 872, we get 56.
Grab the next digit (0) from the dividend, add it to 56, then carry on: 560 / 204

Going ahead to step 4:
If we divide 560 by 204, we get 2 and a remainder of 152.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtracting 408 from 560 leaves us with 152.
Include the next digit (1) from the dividend after 152, then repeat: 1521 / 204

Let's proceed to step 5:
204 can be fit into 1521 7 times, resulting in a remainder of 93.
Use 7 as the next digit of our solution. 
Result so far: 427.0
Subtracting 1428 from 1521 leaves us with 93.
Grab the next digit (1) from the dividend, add it to 93, then carry on: 931 / 204

Let's proceed to step 6:
931 divided by 204 is 4 with a remainder of 115.
Record the quotient 4 as the next digit in the result. 
Result so far: 4274.0
Deduct 816 from 931 and we're left with 115.
Take the next digit (2) from the dividend and append it to 115, then repeat: 1152 / 204

Going ahead to step 7:
The number 204 fits into 1152 5 times, leaving a remainder of 132.
Record the quotient 5 as the next digit in the result. 
Result so far: 42745.0
Deduct 1020 from 1152 and we're left with 132.
Append the next digit (6) from the dividend to 132 and continue with: 1326 / 204

Moving on to step 8:
If we divide 1326 by 204, we get 6 and a remainder of 102.
Put 6 as the next digit of the answer. 
Result so far: 427456.0
If we subtract 1224 from 1326, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Advancing to step 9:
1020 divided by 204 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 427456.5
Subtracting 1020 from 1020 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
The number 204 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 427456.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
The number 204 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 427456.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 427456.5 with a remainder of 0.0.