87241991 ÷ 871 
We want to figure out the number of times 87241991 can be divided by 871.

Step 1:
8 divided by 871 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 871

On to step 2:
The number 871 fits into 87 0 times, leaving a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Fetch the next digit (2) from the dividend, attach it to 87 and continue: 872 / 871

Step 3:
If we divide 872 by 871, we get 1 and a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
If we take 871 away from 872, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 871

Going ahead to step 4:
The number 871 fits into 14 0 times, leaving a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 14, we end up with 14.
Grab the next digit (1) from the dividend, add it to 14, then carry on: 141 / 871

Let's proceed to step 5:
The number 871 fits into 141 0 times, leaving a remainder of 141.
Use 0 as the next digit of our solution. 
Result so far: 100.0
Deduct 0 from 141 and we're left with 141.
Include the next digit (9) from the dividend after 141, then repeat: 1419 / 871

Going ahead to step 6:
871 can be fit into 1419 1 times, resulting in a remainder of 548.
The next digit of our result is 1. 
Result so far: 1001.0
Subtract 871 from 1419 to get 548.
Grab the next digit (9) from the dividend, add it to 548, then carry on: 5489 / 871

On to step 7:
When dividing 5489 by 871, we get 6 with a remainder of 263.
Put 6 as the next digit of the answer. 
Result so far: 10016.0
Deduct 5226 from 5489 and we're left with 263.
Grab the next digit (1) from the dividend, add it to 263, then carry on: 2631 / 871

Let's proceed to step 8:
871 can be fit into 2631 3 times, resulting in a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 100163.0
Deduct 2613 from 2631 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 9:
180 divided by 871 is 0 with a remainder of 180.
The next digit of our result is 0. 
Result so far: 100163.0
If we subtract 0 from 180, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 10:
871 can be fit into 1800 2 times, resulting in a remainder of 58.
The number 2 becomes the next digit in our result. 
Result so far: 100163.02
If we subtract 1742 from 1800, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 11:
580 divided by 871 is 0 with a remainder of 580.
Use 0 as the next digit of our solution. 
Result so far: 100163.02
Subtracting 0 from 580 leaves us with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 12:
When dividing 5800 by 871, we get 6 with a remainder of 574.
The number 6 becomes the next digit in our result. 
Result so far: 100163.0206
If we subtract 5226 from 5800, we get 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Step 13:
When dividing 5740 by 871, we get 6 with a remainder of 514.
The next digit of our result is 6. 
Result so far: 100163.02066
The remainder is 514 after subtracting 5226 from 5740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

The quotient of the division is 100163.02066, and the remainder is 0.000514.