17521055 divided by 806 
Our goal is to divide 17521055 by 806.

Step 1:
When dividing 1 by 806, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 806

Moving on to step 2:
806 goes into 17 0 times with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Include the next digit (5) from the dividend after 17, then repeat: 175 / 806

On to step 3:
If we divide 175 by 806, we get 0 and a remainder of 175.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 175, we get 175.
Include the next digit (2) from the dividend after 175, then repeat: 1752 / 806

Going ahead to step 4:
The number 806 fits into 1752 2 times, leaving a remainder of 140.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 1612 away from 1752, we end up with 140.
Fetch the next digit (1) from the dividend, attach it to 140 and continue: 1401 / 806

Moving on to step 5:
The number 806 fits into 1401 1 times, leaving a remainder of 595.
Use 1 as the next digit of our solution. 
Result so far: 21.0
The remainder is 595 after subtracting 806 from 1401.
Bring next digit (0) of the dividend behind the 595 and repeat the process: 5950 / 806

Going ahead to step 6:
When dividing 5950 by 806, we get 7 with a remainder of 308.
Use 7 as the next digit of our solution. 
Result so far: 217.0
The remainder is 308 after subtracting 5642 from 5950.
Grab the next digit (5) from the dividend, add it to 308, then carry on: 3085 / 806

Step 7:
The number 806 fits into 3085 3 times, leaving a remainder of 667.
Put 3 as the next digit of the answer. 
Result so far: 2173.0
If we subtract 2418 from 3085, we get 667.
Include the next digit (5) from the dividend after 667, then repeat: 6675 / 806

Step 8:
806 can be fit into 6675 8 times, resulting in a remainder of 227.
Use 8 as the next digit of our solution. 
Result so far: 21738.0
If we take 6448 away from 6675, we end up with 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Going ahead to step 9:
806 goes into 2270 2 times with a remainder of 658.
The next digit of our result is 2. 
Result so far: 21738.2
The remainder is 658 after subtracting 1612 from 2270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

Moving on to step 10:
If we divide 6580 by 806, we get 8 and a remainder of 132.
Use 8 as the next digit of our solution. 
Result so far: 21738.28
Subtracting 6448 from 6580 leaves us with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 11:
806 goes into 1320 1 times with a remainder of 514.
Use 1 as the next digit of our solution. 
Result so far: 21738.281
The remainder is 514 after subtracting 806 from 1320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

Let's proceed to step 12:
5140 divided by 806 is 6 with a remainder of 304.
Write down 6 as next digit of the result. 
Result so far: 21738.2816
If we subtract 4836 from 5140, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 13:
If we divide 3040 by 806, we get 3 and a remainder of 622.
Use 3 as the next digit of our solution. 
Result so far: 21738.28163
Subtracting 2418 from 3040 leaves us with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Let's proceed to step 14:
6220 divided by 806 is 7 with a remainder of 578.
The number 7 becomes the next digit in our result. 
Result so far: 21738.281637
Deduct 5642 from 6220 and we're left with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Advancing to step 15:
5780 divided by 806 is 7 with a remainder of 138.
Record the quotient 7 as the next digit in the result. 
Result so far: 21738.2816377
Subtracting 5642 from 5780 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

The final outcome is 21738.2816377, with a leftover of 1.38e-06.