We look at the division of 17072502 by 855 
Our goal is to divide 17072502 by 855.

Advancing to step 1:
When dividing 1 by 855, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 855

On to step 2:
The number 855 fits into 17 0 times, leaving a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Grab the next digit (0) from the dividend, add it to 17, then carry on: 170 / 855

Step 3:
170 divided by 855 is 0 with a remainder of 170.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 170 after subtracting 0 from 170.
Fetch the next digit (7) from the dividend, attach it to 170 and continue: 1707 / 855

Advancing to step 4:
The number 855 fits into 1707 1 times, leaving a remainder of 852.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 855 from 1707 leaves us with 852.
Take the next digit (2) from the dividend and append it to 852, then repeat: 8522 / 855

Going ahead to step 5:
855 can be fit into 8522 9 times, resulting in a remainder of 827.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtracting 7695 from 8522 leaves us with 827.
Fetch the next digit (5) from the dividend, attach it to 827 and continue: 8275 / 855

Step 6:
855 goes into 8275 9 times with a remainder of 580.
The next digit of our result is 9. 
Result so far: 199.0
Subtracting 7695 from 8275 leaves us with 580.
Grab the next digit (0) from the dividend, add it to 580, then carry on: 5800 / 855

Step 7:
When dividing 5800 by 855, we get 6 with a remainder of 670.
The number 6 becomes the next digit in our result. 
Result so far: 1996.0
Subtracting 5130 from 5800 leaves us with 670.
Bring next digit (2) of the dividend behind the 670 and repeat the process: 6702 / 855

Let's proceed to step 8:
If we divide 6702 by 855, we get 7 and a remainder of 717.
The number 7 becomes the next digit in our result. 
Result so far: 19967.0
Deduct 5985 from 6702 and we're left with 717.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7170, and continue the process.

Advancing to step 9:
855 goes into 7170 8 times with a remainder of 330.
The number 8 becomes the next digit in our result. 
Result so far: 19967.8
If we subtract 6840 from 7170, we get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 10:
If we divide 3300 by 855, we get 3 and a remainder of 735.
Record the quotient 3 as the next digit in the result. 
Result so far: 19967.83
If we subtract 2565 from 3300, we get 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

On to step 11:
If we divide 7350 by 855, we get 8 and a remainder of 510.
The next digit of our result is 8. 
Result so far: 19967.838
If we subtract 6840 from 7350, we get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Step 12:
855 goes into 5100 5 times with a remainder of 825.
The number 5 becomes the next digit in our result. 
Result so far: 19967.8385
Deduct 4275 from 5100 and we're left with 825.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8250, and continue the process.

Advancing to step 13:
If we divide 8250 by 855, we get 9 and a remainder of 555.
Record the quotient 9 as the next digit in the result. 
Result so far: 19967.83859
If we take 7695 away from 8250, we end up with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

Moving on to step 14:
855 goes into 5550 6 times with a remainder of 420.
Write down 6 as next digit of the result. 
Result so far: 19967.838596
If we subtract 5130 from 5550, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 15:
855 can be fit into 4200 4 times, resulting in a remainder of 780.
Record the quotient 4 as the next digit in the result. 
Result so far: 19967.8385964
Subtract 3420 from 4200 to get 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

On to step 16:
7800 divided by 855 is 9 with a remainder of 105.
The number 9 becomes the next digit in our result. 
Result so far: 19967.83859649
The remainder is 105 after subtracting 7695 from 7800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The final outcome is 19967.83859649, with a leftover of 1.05e-07.