804104 ÷ 15 
We want to figure out the number of times 804104 can be divided by 15.

On to step 1:
The number 15 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 15

On to step 2:
If we divide 80 by 15, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 75 from 80 leaves us with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 15

Advancing to step 3:
54 divided by 15 is 3 with a remainder of 9.
The next digit of our result is 3. 
Result so far: 53.0
If we take 45 away from 54, we end up with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 15

Advancing to step 4:
When dividing 91 by 15, we get 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 536.0
If we subtract 90 from 91, we get 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 15

Let's proceed to step 5:
15 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 5360.0
Deduct 0 from 10 and we're left with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 15

Moving on to step 6:
15 can be fit into 104 6 times, resulting in a remainder of 14.
The next digit of our result is 6. 
Result so far: 53606.0
Deduct 90 from 104 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
If we divide 140 by 15, we get 9 and a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 53606.9
Subtract 135 from 140 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
50 divided by 15 is 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 53606.93
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
When dividing 50 by 15, we get 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 53606.933
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 53606.933 with a remaining 0.0005.