521176 divided by 87 
We're looking to find how many times 87 goes into 521176.

On to step 1:
5 divided by 87 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 87

Moving on to step 2:
The number 87 fits into 52 0 times, leaving a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Append the next digit (1) from the dividend to 52 and continue with: 521 / 87

Moving on to step 3:
87 goes into 521 5 times with a remainder of 86.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 435 from 521 to get 86.
Append the next digit (1) from the dividend to 86 and continue with: 861 / 87

On to step 4:
If we divide 861 by 87, we get 9 and a remainder of 78.
Write down 9 as next digit of the result. 
Result so far: 59.0
If we take 783 away from 861, we end up with 78.
Take the next digit (7) from the dividend and append it to 78, then repeat: 787 / 87

Going ahead to step 5:
If we divide 787 by 87, we get 9 and a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 599.0
Deduct 783 from 787 and we're left with 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 87

Going ahead to step 6:
If we divide 46 by 87, we get 0 and a remainder of 46.
Write down 0 as next digit of the result. 
Result so far: 5990.0
If we take 0 away from 46, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 7:
The number 87 fits into 460 5 times, leaving a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 5990.5
Subtracting 435 from 460 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 8:
87 can be fit into 250 2 times, resulting in a remainder of 76.
The number 2 becomes the next digit in our result. 
Result so far: 5990.52
If we subtract 174 from 250, we get 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 9:
87 goes into 760 8 times with a remainder of 64.
Put 8 as the next digit of the answer. 
Result so far: 5990.528
If we take 696 away from 760, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 10:
The number 87 fits into 640 7 times, leaving a remainder of 31.
Use 7 as the next digit of our solution. 
Result so far: 5990.5287
The remainder is 31 after subtracting 609 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 11:
310 divided by 87 is 3 with a remainder of 49.
Put 3 as the next digit of the answer. 
Result so far: 5990.52873
Deduct 261 from 310 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 12:
When dividing 490 by 87, we get 5 with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 5990.528735
Deduct 435 from 490 and we're left 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.

Let's proceed to step 13:
If we divide 550 by 87, we get 6 and a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 5990.5287356
Subtracting 522 from 550 leaves us with 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 14:
87 can be fit into 280 3 times, resulting in a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 5990.52873563
If we take 261 away from 280, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final outcome is 5990.52873563, with a leftover of 1.9e-08.