We're dividing 86015390 by 172 
We want to divide 86015390 by 172.

Going ahead to step 1:
172 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 172

Advancing to step 2:
172 goes into 86 0 times with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Bring next digit (0) of the dividend behind the 86 and repeat the process: 860 / 172

On to step 3:
If we divide 860 by 172, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 860 from 860, we get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 172

Step 4:
172 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
If we subtract 0 from 1, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 172

Going ahead to step 5:
172 goes into 15 0 times with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 500.0
Subtracting 0 from 15 leaves us with 15.
Include the next digit (3) from the dividend after 15, then repeat: 153 / 172

Let's proceed to step 6:
The number 172 fits into 153 0 times, leaving a remainder of 153.
Record the quotient 0 as the next digit in the result. 
Result so far: 5000.0
If we take 0 away from 153, we end up with 153.
Fetch the next digit (9) from the dividend, attach it to 153 and continue: 1539 / 172

Let's proceed to step 7:
When dividing 1539 by 172, we get 8 with a remainder of 163.
The next digit of our result is 8. 
Result so far: 50008.0
If we subtract 1376 from 1539, we get 163.
Grab the next digit (0) from the dividend, add it to 163, then carry on: 1630 / 172

Advancing to step 8:
172 goes into 1630 9 times with a remainder of 82.
The number 9 becomes the next digit in our result. 
Result so far: 500089.0
If we subtract 1548 from 1630, we get 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 9:
If we divide 820 by 172, we get 4 and a remainder of 132.
The next digit of our result is 4. 
Result so far: 500089.4
If we subtract 688 from 820, we get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Let's proceed to step 10:
1320 divided by 172 is 7 with a remainder of 116.
The next digit of our result is 7. 
Result so far: 500089.47
The remainder is 116 after subtracting 1204 from 1320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Step 11:
172 can be fit into 1160 6 times, resulting in a remainder of 128.
Record the quotient 6 as the next digit in the result. 
Result so far: 500089.476
The remainder is 128 after subtracting 1032 from 1160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 12:
172 goes into 1280 7 times with a remainder of 76.
Write down 7 as next digit of the result. 
Result so far: 500089.4767
If we take 1204 away from 1280, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 13:
760 divided by 172 is 4 with a remainder of 72.
Write down 4 as next digit of the result. 
Result so far: 500089.47674
If we subtract 688 from 760, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 14:
The number 172 fits into 720 4 times, leaving a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 500089.476744
The remainder is 32 after subtracting 688 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 500089.476744 and a remainder of 3.2e-06.