172648 ÷ 87 
We want to figure out the number of times 172648 can be divided by 87.

Let's proceed to step 1:
The number 87 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 87

Let's proceed to step 2:
If we divide 17 by 87, we get 0 and a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Fetch the next digit (2) from the dividend, attach it to 17 and continue: 172 / 87

Moving on to step 3:
172 divided by 87 is 1 with a remainder of 85.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 87 from 172 and we're left with 85.
Take the next digit (6) from the dividend and append it to 85, then repeat: 856 / 87

Advancing to step 4:
When dividing 856 by 87, we get 9 with a remainder of 73.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
The remainder is 73 after subtracting 783 from 856.
Fetch the next digit (4) from the dividend, attach it to 73 and continue: 734 / 87

Going ahead to step 5:
734 divided by 87 is 8 with a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 198.0
Deduct 696 from 734 and we're left with 38.
Include the next digit (8) from the dividend after 38, then repeat: 388 / 87

Advancing to step 6:
When dividing 388 by 87, we get 4 with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 1984.0
If we take 348 away from 388, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 7:
400 divided by 87 is 4 with a remainder of 52.
The next digit of our result is 4. 
Result so far: 1984.4
Subtracting 348 from 400 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 8:
520 divided by 87 is 5 with a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 1984.45
If we subtract 435 from 520, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

On to step 9:
87 goes into 850 9 times with a remainder of 67.
The number 9 becomes the next digit in our result. 
Result so far: 1984.459
If we subtract 783 from 850, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 10:
If we divide 670 by 87, we get 7 and a remainder of 61.
Write down 7 as next digit of the result. 
Result so far: 1984.4597
Deduct 609 from 670 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 11:
If we divide 610 by 87, we get 7 and a remainder of 1.
The next digit of our result is 7. 
Result so far: 1984.45977
The remainder is 1 after subtracting 609 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 1984.45977 with a remainder of 1e-06.