99867102 divided by 804 
The aim is to understand the frequency of 804 in 99867102.

Going ahead to step 1:
The number 804 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 804

Going ahead to step 2:
99 divided by 804 is 0 with a remainder of 99.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 99, we get 99.
Append the next digit (8) from the dividend to 99 and continue with: 998 / 804

Step 3:
804 can be fit into 998 1 times, resulting in a remainder of 194.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 804 from 998 and we're left with 194.
Take the next digit (6) from the dividend and append it to 194, then repeat: 1946 / 804

On to step 4:
804 goes into 1946 2 times with a remainder of 338.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 1608 from 1946 to get 338.
Fetch the next digit (7) from the dividend, attach it to 338 and continue: 3387 / 804

Step 5:
When dividing 3387 by 804, we get 4 with a remainder of 171.
Use 4 as the next digit of our solution. 
Result so far: 124.0
The remainder is 171 after subtracting 3216 from 3387.
Take the next digit (1) from the dividend and append it to 171, then repeat: 1711 / 804

Advancing to step 6:
When dividing 1711 by 804, we get 2 with a remainder of 103.
Record the quotient 2 as the next digit in the result. 
Result so far: 1242.0
Subtract 1608 from 1711 to get 103.
Append the next digit (0) from the dividend to 103 and continue with: 1030 / 804

On to step 7:
When dividing 1030 by 804, we get 1 with a remainder of 226.
Record the quotient 1 as the next digit in the result. 
Result so far: 12421.0
If we take 804 away from 1030, we end up with 226.
Include the next digit (2) from the dividend after 226, then repeat: 2262 / 804

Going ahead to step 8:
If we divide 2262 by 804, we get 2 and a remainder of 654.
The number 2 becomes the next digit in our result. 
Result so far: 124212.0
Deduct 1608 from 2262 and we're left with 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

Let's proceed to step 9:
804 can be fit into 6540 8 times, resulting in a remainder of 108.
Record the quotient 8 as the next digit in the result. 
Result so far: 124212.8
If we subtract 6432 from 6540, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

On to step 10:
1080 divided by 804 is 1 with a remainder of 276.
Put 1 as the next digit of the answer. 
Result so far: 124212.81
Deduct 804 from 1080 and we're left with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Advancing to step 11:
804 goes into 2760 3 times with a remainder of 348.
Put 3 as the next digit of the answer. 
Result so far: 124212.813
Subtracting 2412 from 2760 leaves us with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Step 12:
804 can be fit into 3480 4 times, resulting in a remainder of 264.
Record the quotient 4 as the next digit in the result. 
Result so far: 124212.8134
If we take 3216 away from 3480, we end up with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

On to step 13:
804 can be fit into 2640 3 times, resulting in a remainder of 228.
Write down 3 as next digit of the result. 
Result so far: 124212.81343
Subtracting 2412 from 2640 leaves us with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Step 14:
804 goes into 2280 2 times with a remainder of 672.
Put 2 as the next digit of the answer. 
Result so far: 124212.813432
Deduct 1608 from 2280 and we're left with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Step 15:
804 goes into 6720 8 times with a remainder of 288.
The next digit of our result is 8. 
Result so far: 124212.8134328
If we take 6432 away from 6720, we end up with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Advancing to step 16:
If we divide 2880 by 804, we get 3 and a remainder of 468.
Use 3 as the next digit of our solution. 
Result so far: 124212.81343283
Deduct 2412 from 2880 and we're left with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

The final outcome is 124212.81343283, with a leftover of 4.68e-07.