Let's divide 102638 by 85
Our goal is to divide 102638 by 85.

Going ahead to step 1:
If we divide 1 by 85, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 85

Moving on to step 2:
The number 85 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 85

Step 3:
85 goes into 102 1 times with a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 85 from 102 to get 17.
Bring next digit (6) of the dividend behind the 17 and repeat the process: 176 / 85

Let's proceed to step 4:
The number 85 fits into 176 2 times, leaving a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 170 from 176 leaves us with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 85

Let's proceed to step 5:
The number 85 fits into 63 0 times, leaving a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 120.0
Subtract 0 from 63 to get 63.
Include the next digit (8) from the dividend after 63, then repeat: 638 / 85

Going ahead to step 6:
The number 85 fits into 638 7 times, leaving a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 1207.0
Subtracting 595 from 638 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 7:
85 can be fit into 430 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 1207.5
Subtract 425 from 430 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 8:
85 can be fit into 50 0 times, resulting in a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 1207.5
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 9:
85 can be fit into 500 5 times, resulting in a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 1207.505
Subtracting 425 from 500 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 10:
If we divide 750 by 85, we get 8 and a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 1207.5058
Subtracting 680 from 750 leaves us 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.

Going ahead to step 11:
700 divided by 85 is 8 with a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 1207.50588
Deduct 680 from 700 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 1207.50588 with a balance of 2e-05.