We divide 510571 by 87
We want to figure out the number of times 510571 can be divided by 87.

Step 1:
The number 87 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 87

Advancing to step 2:
87 can be fit into 51 0 times, resulting in a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Take the next digit (0) from the dividend and append it to 51, then repeat: 510 / 87

Step 3:
When dividing 510 by 87, we get 5 with a remainder of 75.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 435 from 510 to get 75.
Append the next digit (5) from the dividend to 75 and continue with: 755 / 87

Let's proceed to step 4:
The number 87 fits into 755 8 times, leaving a remainder of 59.
The number 8 becomes the next digit in our result. 
Result so far: 58.0
Subtracting 696 from 755 leaves us with 59.
Include the next digit (7) from the dividend after 59, then repeat: 597 / 87

Step 5:
If we divide 597 by 87, we get 6 and a remainder of 75.
Write down 6 as next digit of the result. 
Result so far: 586.0
Subtracting 522 from 597 leaves us with 75.
Append the next digit (1) from the dividend to 75 and continue with: 751 / 87

On to step 6:
The number 87 fits into 751 8 times, leaving a remainder of 55.
Record the quotient 8 as the next digit in the result. 
Result so far: 5868.0
If we subtract 696 from 751, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 7:
If we divide 550 by 87, we get 6 and a remainder of 28.
The next digit of our result is 6. 
Result so far: 5868.6
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 8:
280 divided by 87 is 3 with a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 5868.63
The remainder is 19 after subtracting 261 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
If we divide 190 by 87, we get 2 and a remainder of 16.
The next digit of our result is 2. 
Result so far: 5868.632
The remainder is 16 after subtracting 174 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 10:
87 goes into 160 1 times with a remainder of 73.
The number 1 becomes the next digit in our result. 
Result so far: 5868.6321
The remainder is 73 after subtracting 87 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 11:
The number 87 fits into 730 8 times, leaving a remainder of 34.
Record the quotient 8 as the next digit in the result. 
Result so far: 5868.63218
If we take 696 away from 730, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 12:
If we divide 340 by 87, we get 3 and a remainder of 79.
The number 3 becomes the next digit in our result. 
Result so far: 5868.632183
If we take 261 away from 340, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 13:
87 can be fit into 790 9 times, resulting in a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 5868.6321839
Subtracting 783 from 790 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 14:
87 goes into 70 0 times with a remainder of 70.
The next digit of our result is 0. 
Result so far: 5868.6321839
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final result is 5868.6321839 with a remainder of 7e-08.