103812 divided by 31 
We want to figure out the number of times 103812 can be divided by 31.

Going ahead to step 1:
31 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 31

Step 2:
If we divide 10 by 31, we get 0 and 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.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 31

Going ahead to step 3:
31 can be fit into 103 3 times, resulting in a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 93 from 103 to get 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 31

Going ahead to step 4:
31 can be fit into 108 3 times, resulting in a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 33.0
If we subtract 93 from 108, we get 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 31

Going ahead to step 5:
31 can be fit into 151 4 times, resulting in a remainder of 27.
Write down 4 as next digit of the result. 
Result so far: 334.0
Subtract 124 from 151 to get 27.
Take the next digit (2) from the dividend and append it to 27, then repeat: 272 / 31

On to step 6:
If we divide 272 by 31, we get 8 and a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 3348.0
Subtracting 248 from 272 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
31 goes into 240 7 times with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 3348.7
If we subtract 217 from 240, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 8:
31 can be fit into 230 7 times, resulting in a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 3348.77
The remainder is 13 after subtracting 217 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 3348.77 and a remainder of 0.013.