We're dividing 17003969 by 815 
Our goal is to divide 17003969 by 815.

Going ahead to step 1:
If we divide 1 by 815, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 815

Step 2:
815 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 17 leaves us with 17.
Take the next digit (0) from the dividend and append it to 17, then repeat: 170 / 815

Let's proceed to step 3:
The number 815 fits into 170 0 times, leaving a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 170 leaves us with 170.
Append the next digit (0) from the dividend to 170 and continue with: 1700 / 815

Moving on to step 4:
The number 815 fits into 1700 2 times, leaving a remainder of 70.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 1630 from 1700 leaves us with 70.
Append the next digit (3) from the dividend to 70 and continue with: 703 / 815

Step 5:
703 divided by 815 is 0 with a remainder of 703.
The next digit of our result is 0. 
Result so far: 20.0
If we subtract 0 from 703, we get 703.
Include the next digit (9) from the dividend after 703, then repeat: 7039 / 815

Going ahead to step 6:
The number 815 fits into 7039 8 times, leaving a remainder of 519.
Use 8 as the next digit of our solution. 
Result so far: 208.0
The remainder is 519 after subtracting 6520 from 7039.
Fetch the next digit (6) from the dividend, attach it to 519 and continue: 5196 / 815

Advancing to step 7:
When dividing 5196 by 815, we get 6 with a remainder of 306.
Write down 6 as next digit of the result. 
Result so far: 2086.0
If we subtract 4890 from 5196, we get 306.
Append the next digit (9) from the dividend to 306 and continue with: 3069 / 815

On to step 8:
If we divide 3069 by 815, we get 3 and a remainder of 624.
Record the quotient 3 as the next digit in the result. 
Result so far: 20863.0
Deduct 2445 from 3069 and we're left with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Moving on to step 9:
The number 815 fits into 6240 7 times, leaving a remainder of 535.
The next digit of our result is 7. 
Result so far: 20863.7
Subtracting 5705 from 6240 leaves us with 535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Step 10:
If we divide 5350 by 815, we get 6 and a remainder of 460.
The number 6 becomes the next digit in our result. 
Result so far: 20863.76
If we take 4890 away from 5350, we end up with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 11:
815 goes into 4600 5 times with a remainder of 525.
Use 5 as the next digit of our solution. 
Result so far: 20863.765
If we take 4075 away from 4600, we end up with 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Let's proceed to step 12:
The number 815 fits into 5250 6 times, leaving a remainder of 360.
The number 6 becomes the next digit in our result. 
Result so far: 20863.7656
The remainder is 360 after subtracting 4890 from 5250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 13:
The number 815 fits into 3600 4 times, leaving a remainder of 340.
The number 4 becomes the next digit in our result. 
Result so far: 20863.76564
Deduct 3260 from 3600 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 14:
When dividing 3400 by 815, we get 4 with a remainder of 140.
Use 4 as the next digit of our solution. 
Result so far: 20863.765644
If we take 3260 away from 3400, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 20863.765644 with a remaining 1.4e-05.