15530355 divided by 804 
The aim is to understand the frequency of 804 in 15530355.

Advancing to step 1:
When dividing 1 by 804, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 804

Step 2:
The number 804 fits into 15 0 times, leaving a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Include the next digit (5) from the dividend after 15, then repeat: 155 / 804

Going ahead to step 3:
804 goes into 155 0 times with a remainder of 155.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 155 after subtracting 0 from 155.
Include the next digit (3) from the dividend after 155, then repeat: 1553 / 804

On to step 4:
1553 divided by 804 is 1 with a remainder of 749.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 804 from 1553, we get 749.
Bring next digit (0) of the dividend behind the 749 and repeat the process: 7490 / 804

Let's proceed to step 5:
The number 804 fits into 7490 9 times, leaving a remainder of 254.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtract 7236 from 7490 to get 254.
Take the next digit (3) from the dividend and append it to 254, then repeat: 2543 / 804

Going ahead to step 6:
2543 divided by 804 is 3 with a remainder of 131.
The next digit of our result is 3. 
Result so far: 193.0
Deduct 2412 from 2543 and we're left with 131.
Append the next digit (5) from the dividend to 131 and continue with: 1315 / 804

Let's proceed to step 7:
1315 divided by 804 is 1 with a remainder of 511.
The next digit of our result is 1. 
Result so far: 1931.0
If we take 804 away from 1315, we end up with 511.
Take the next digit (5) from the dividend and append it to 511, then repeat: 5115 / 804

Moving on to step 8:
804 can be fit into 5115 6 times, resulting in a remainder of 291.
Put 6 as the next digit of the answer. 
Result so far: 19316.0
The remainder is 291 after subtracting 4824 from 5115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Step 9:
804 goes into 2910 3 times with a remainder of 498.
Put 3 as the next digit of the answer. 
Result so far: 19316.3
If we take 2412 away from 2910, we end up with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

Advancing to step 10:
When dividing 4980 by 804, we get 6 with a remainder of 156.
Record the quotient 6 as the next digit in the result. 
Result so far: 19316.36
The remainder is 156 after subtracting 4824 from 4980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Moving on to step 11:
1560 divided by 804 is 1 with a remainder of 756.
Use 1 as the next digit of our solution. 
Result so far: 19316.361
Deduct 804 from 1560 and we're left with 756.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7560, and continue the process.

Advancing to step 12:
804 can be fit into 7560 9 times, resulting in a remainder of 324.
The number 9 becomes the next digit in our result. 
Result so far: 19316.3619
The remainder is 324 after subtracting 7236 from 7560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Step 13:
804 goes into 3240 4 times with a remainder of 24.
The next digit of our result is 4. 
Result so far: 19316.36194
Subtracting 3216 from 3240 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 14:
When dividing 240 by 804, we get 0 with a remainder of 240.
The next digit of our result is 0. 
Result so far: 19316.36194
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 15:
If we divide 2400 by 804, we get 2 and a remainder of 792.
Record the quotient 2 as the next digit in the result. 
Result so far: 19316.3619402
If we take 1608 away from 2400, we end up with 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

Step 16:
The number 804 fits into 7920 9 times, leaving a remainder of 684.
The next digit of our result is 9. 
Result so far: 19316.36194029
The remainder is 684 after subtracting 7236 from 7920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6840, and continue the process.

The final result is 19316.36194029 with a remainder of 6.84e-07.