We look at the division of 51817249 by 171 
We're looking to find how many times 171 goes into 51817249.

On to step 1:
The number 171 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 171

Let's proceed to step 2:
The number 171 fits into 51 0 times, leaving a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Take the next digit (8) from the dividend and append it to 51, then repeat: 518 / 171

On to step 3:
171 goes into 518 3 times with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 513 from 518, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 171

Advancing to step 4:
171 goes into 51 0 times with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
Subtracting 0 from 51 leaves us with 51.
Fetch the next digit (7) from the dividend, attach it to 51 and continue: 517 / 171

Moving on to step 5:
The number 171 fits into 517 3 times, leaving a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 303.0
The remainder is 4 after subtracting 513 from 517.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 171

Step 6:
When dividing 42 by 171, we get 0 with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 3030.0
If we subtract 0 from 42, we get 42.
Take the next digit (4) from the dividend and append it to 42, then repeat: 424 / 171

Moving on to step 7:
If we divide 424 by 171, we get 2 and a remainder of 82.
The number 2 becomes the next digit in our result. 
Result so far: 30302.0
If we take 342 away from 424, we end up with 82.
Include the next digit (9) from the dividend after 82, then repeat: 829 / 171

On to step 8:
171 can be fit into 829 4 times, resulting in a remainder of 145.
Put 4 as the next digit of the answer. 
Result so far: 303024.0
If we subtract 684 from 829, we get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Step 9:
1450 divided by 171 is 8 with a remainder of 82.
The next digit of our result is 8. 
Result so far: 303024.8
Subtracting 1368 from 1450 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 10:
If we divide 820 by 171, we get 4 and a remainder of 136.
Write down 4 as next digit of the result. 
Result so far: 303024.84
If we take 684 away from 820, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 11:
1360 divided by 171 is 7 with a remainder of 163.
Write down 7 as next digit of the result. 
Result so far: 303024.847
Deduct 1197 from 1360 and we're left with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

On to step 12:
When dividing 1630 by 171, we get 9 with a remainder of 91.
Write down 9 as next digit of the result. 
Result so far: 303024.8479
If we take 1539 away from 1630, we end up with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Going ahead to step 13:
171 goes into 910 5 times with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 303024.84795
Subtracting 855 from 910 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 14:
171 goes into 550 3 times with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 303024.847953
If we take 513 away from 550, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 15:
171 can be fit into 370 2 times, resulting in a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 303024.8479532
If we subtract 342 from 370, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 16:
171 can be fit into 280 1 times, resulting in a remainder of 109.
Write down 1 as next digit of the result. 
Result so far: 303024.84795321
The remainder is 109 after subtracting 171 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Our division results in 303024.84795321 with a remaining 1.09e-07.