Let's divide 861617 by 87
Our goal is to divide 861617 by 87.

Step 1:
87 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 87

Step 2:
87 can be fit into 86 0 times, resulting in a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Grab the next digit (1) from the dividend, add it to 86, then carry on: 861 / 87

Step 3:
87 can be fit into 861 9 times, resulting in a remainder of 78.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 783 from 861 to get 78.
Take the next digit (6) from the dividend and append it to 78, then repeat: 786 / 87

Let's proceed to step 4:
When dividing 786 by 87, we get 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 99.0
The remainder is 3 after subtracting 783 from 786.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 87

On to step 5:
31 divided by 87 is 0 with a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 990.0
Subtracting 0 from 31 leaves us with 31.
Bring next digit (7) of the dividend behind the 31 and repeat the process: 317 / 87

On to step 6:
87 can be fit into 317 3 times, resulting in a remainder of 56.
The number 3 becomes the next digit in our result. 
Result so far: 9903.0
Subtracting 261 from 317 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 7:
The number 87 fits into 560 6 times, leaving a remainder of 38.
Record the quotient 6 as the next digit in the result. 
Result so far: 9903.6
Deduct 522 from 560 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 8:
87 goes into 380 4 times with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 9903.64
Subtract 348 from 380 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
The number 87 fits into 320 3 times, leaving a remainder of 59.
The number 3 becomes the next digit in our result. 
Result so far: 9903.643
Deduct 261 from 320 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 10:
When dividing 590 by 87, we get 6 with a remainder of 68.
Write down 6 as next digit of the result. 
Result so far: 9903.6436
Subtracting 522 from 590 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 11:
680 divided by 87 is 7 with a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 9903.64367
The remainder is 71 after subtracting 609 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 12:
If we divide 710 by 87, we get 8 and a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 9903.643678
Deduct 696 from 710 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 13:
When dividing 140 by 87, we get 1 with a remainder of 53.
Write down 1 as next digit of the result. 
Result so far: 9903.6436781
Subtracting 87 from 140 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 14:
87 can be fit into 530 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 9903.64367816
Subtract 522 from 530 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 9903.64367816 with a remaining 8e-09.