Let's divide 81131 by 2
We want to figure out the number of times 81131 can be divided by 2.

Step 1:
If we divide 8 by 2, we get 4 and a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 8 from 8 leaves us with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 2

Going ahead to step 2:
The number 2 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 2

Advancing to step 3:
11 divided by 2 is 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 405.0
Subtract 10 from 11 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 2

Let's proceed to step 4:
13 divided by 2 is 6 with a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 4056.0
If we subtract 12 from 13, we get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 2

Moving on to step 5:
If we divide 11 by 2, we get 5 and a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 40565.0
Deduct 10 from 11 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 6:
2 can be fit into 10 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 40565.5
If we subtract 10 from 10, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
If we divide 0 by 2, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 40565.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 40565.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 40565.5 and a remainder of 0.0.