69721990 divided by 804 
The aim is to understand the frequency of 804 in 69721990.

Advancing to step 1:
When dividing 6 by 804, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 804

Going ahead to step 2:
804 can be fit into 69 0 times, resulting in a remainder of 69.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 69 leaves us with 69.
Take the next digit (7) from the dividend and append it to 69, then repeat: 697 / 804

Moving on to step 3:
804 can be fit into 697 0 times, resulting in a remainder of 697.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 697, we get 697.
Take the next digit (2) from the dividend and append it to 697, then repeat: 6972 / 804

Step 4:
804 goes into 6972 8 times with a remainder of 540.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 6432 from 6972 leaves us with 540.
Bring next digit (1) of the dividend behind the 540 and repeat the process: 5401 / 804

Moving on to step 5:
5401 divided by 804 is 6 with a remainder of 577.
Put 6 as the next digit of the answer. 
Result so far: 86.0
Deduct 4824 from 5401 and we're left with 577.
Fetch the next digit (9) from the dividend, attach it to 577 and continue: 5779 / 804

On to step 6:
804 can be fit into 5779 7 times, resulting in a remainder of 151.
The next digit of our result is 7. 
Result so far: 867.0
Subtracting 5628 from 5779 leaves us with 151.
Append the next digit (9) from the dividend to 151 and continue with: 1519 / 804

Let's proceed to step 7:
1519 divided by 804 is 1 with a remainder of 715.
The next digit of our result is 1. 
Result so far: 8671.0
Subtracting 804 from 1519 leaves us with 715.
Append the next digit (0) from the dividend to 715 and continue with: 7150 / 804

Let's proceed to step 8:
804 can be fit into 7150 8 times, resulting in a remainder of 718.
Write down 8 as next digit of the result. 
Result so far: 86718.0
Subtracting 6432 from 7150 leaves us with 718.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7180, and continue the process.

Going ahead to step 9:
If we divide 7180 by 804, we get 8 and a remainder of 748.
The number 8 becomes the next digit in our result. 
Result so far: 86718.8
Subtracting 6432 from 7180 leaves us with 748.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7480, and continue the process.

Let's proceed to step 10:
The number 804 fits into 7480 9 times, leaving a remainder of 244.
The number 9 becomes the next digit in our result. 
Result so far: 86718.89
The remainder is 244 after subtracting 7236 from 7480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 11:
2440 divided by 804 is 3 with a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 86718.893
Subtracting 2412 from 2440 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
280 divided by 804 is 0 with a remainder of 280.
Put 0 as the next digit of the answer. 
Result so far: 86718.893
Subtracting 0 from 280 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 13:
2800 divided by 804 is 3 with a remainder of 388.
The number 3 becomes the next digit in our result. 
Result so far: 86718.89303
The remainder is 388 after subtracting 2412 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Let's proceed to step 14:
The number 804 fits into 3880 4 times, leaving a remainder of 664.
Use 4 as the next digit of our solution. 
Result so far: 86718.893034
Deduct 3216 from 3880 and we're left with 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Step 15:
If we divide 6640 by 804, we get 8 and a remainder of 208.
Write down 8 as next digit of the result. 
Result so far: 86718.8930348
Subtract 6432 from 6640 to get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Step 16:
The number 804 fits into 2080 2 times, leaving a remainder of 472.
Write down 2 as next digit of the result. 
Result so far: 86718.89303482
If we subtract 1608 from 2080, we get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

After the division, we end up with 86718.89303482 and a remainder of 4.72e-07.