Let's divide 903563 by 12
We're looking to find how many times 12 goes into 903563.

Advancing to step 1:
When dividing 9 by 12, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 12

Going ahead to step 2:
When dividing 90 by 12, we get 7 with a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 84 from 90 leaves us with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 12

On to step 3:
If we divide 63 by 12, we get 5 and a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 75.0
If we subtract 60 from 63, we get 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 12

Step 4:
The number 12 fits into 35 2 times, leaving a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 752.0
The remainder is 11 after subtracting 24 from 35.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 12

Step 5:
12 can be fit into 116 9 times, resulting in a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 7529.0
Subtracting 108 from 116 leaves us with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 12

Moving on to step 6:
83 divided by 12 is 6 with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 75296.0
The remainder is 11 after subtracting 72 from 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
If we divide 110 by 12, we get 9 and a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 75296.9
Subtracting 108 from 110 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
When dividing 20 by 12, we get 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 75296.91
The remainder is 8 after subtracting 12 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
If we divide 80 by 12, we get 6 and a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 75296.916
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 10:
80 divided by 12 is 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 75296.9166
Deduct 72 from 80 and we're left with 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 75296.9166 with a remaining 8e-05.