Let's divide 86261623 by 857
Our goal is to divide 86261623 by 857.

On to step 1:
When dividing 8 by 857, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 857

Going ahead to step 2:
When dividing 86 by 857, we get 0 with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Include the next digit (2) from the dividend after 86, then repeat: 862 / 857

Step 3:
The number 857 fits into 862 1 times, leaving a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 857 from 862 leaves us with 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 857

Advancing to step 4:
56 divided by 857 is 0 with a remainder of 56.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 56 and we're left with 56.
Include the next digit (1) from the dividend after 56, then repeat: 561 / 857

Step 5:
The number 857 fits into 561 0 times, leaving a remainder of 561.
Write down 0 as next digit of the result. 
Result so far: 100.0
Deduct 0 from 561 and we're left with 561.
Take the next digit (6) from the dividend and append it to 561, then repeat: 5616 / 857

Advancing to step 6:
5616 divided by 857 is 6 with a remainder of 474.
Write down 6 as next digit of the result. 
Result so far: 1006.0
Subtracting 5142 from 5616 leaves us with 474.
Grab the next digit (2) from the dividend, add it to 474, then carry on: 4742 / 857

Step 7:
If we divide 4742 by 857, we get 5 and a remainder of 457.
The next digit of our result is 5. 
Result so far: 10065.0
Deduct 4285 from 4742 and we're left with 457.
Fetch the next digit (3) from the dividend, attach it to 457 and continue: 4573 / 857

Advancing to step 8:
4573 divided by 857 is 5 with a remainder of 288.
Record the quotient 5 as the next digit in the result. 
Result so far: 100655.0
The remainder is 288 after subtracting 4285 from 4573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

On to step 9:
2880 divided by 857 is 3 with a remainder of 309.
Write down 3 as next digit of the result. 
Result so far: 100655.3
Subtract 2571 from 2880 to get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Advancing to step 10:
857 can be fit into 3090 3 times, resulting in a remainder of 519.
Put 3 as the next digit of the answer. 
Result so far: 100655.33
The remainder is 519 after subtracting 2571 from 3090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

Our division results in 100655.33 with a remaining 0.519.