Let's divide 853771 by 87
We're looking to find how many times 87 goes into 853771.

Let's proceed to step 1:
8 divided by 87 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 87

Moving on to step 2:
87 can be fit into 85 0 times, resulting in a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 85 after subtracting 0 from 85.
Grab the next digit (3) from the dividend, add it to 85, then carry on: 853 / 87

On to step 3:
87 can be fit into 853 9 times, resulting in a remainder of 70.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 783 away from 853, we end up with 70.
Grab the next digit (7) from the dividend, add it to 70, then carry on: 707 / 87

Advancing to step 4:
The number 87 fits into 707 8 times, leaving a remainder of 11.
The number 8 becomes the next digit in our result. 
Result so far: 98.0
Subtract 696 from 707 to get 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 87

Moving on to step 5:
87 can be fit into 117 1 times, resulting in a remainder of 30.
The number 1 becomes the next digit in our result. 
Result so far: 981.0
Deduct 87 from 117 and we're left with 30.
Bring next digit (1) of the dividend behind the 30 and repeat the process: 301 / 87

Advancing to step 6:
The number 87 fits into 301 3 times, leaving a remainder of 40.
Use 3 as the next digit of our solution. 
Result so far: 9813.0
Subtracting 261 from 301 leaves us 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.

On to step 7:
The number 87 fits into 400 4 times, leaving a remainder of 52.
Write down 4 as next digit of the result. 
Result so far: 9813.4
If we subtract 348 from 400, we get 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:
87 can be fit into 520 5 times, resulting in a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 9813.45
Subtracting 435 from 520 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Going ahead to step 9:
If we divide 850 by 87, we get 9 and a remainder of 67.
The next digit of our result is 9. 
Result so far: 9813.459
The remainder is 67 after subtracting 783 from 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 10:
87 can be fit into 670 7 times, resulting in a remainder of 61.
The number 7 becomes the next digit in our result. 
Result so far: 9813.4597
If we subtract 609 from 670, we get 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: 9813.45977
Subtract 609 from 610 to get 1.
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 outcome is 9813.45977, with a leftover of 1e-06.