81322486 ÷ 4 
Our goal is to divide 81322486 by 4.

Advancing to step 1:
The number 4 fits into 8 2 times, leaving a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 0 after subtracting 8 from 8.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 4

Let's proceed to step 2:
1 divided by 4 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 20.0
If we subtract 0 from 1, we get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 4

On to step 3:
4 goes into 13 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 203.0
If we take 12 away from 13, we end up with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 4

On to step 4:
If we divide 12 by 4, we get 3 and a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 2033.0
If we take 12 away from 12, we end up with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 4

On to step 5:
4 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 20330.0
If we subtract 0 from 2, we get 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 4

Going ahead to step 6:
4 can be fit into 24 6 times, resulting in a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 203306.0
If we take 24 away from 24, we end up with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 4

Moving on to step 7:
The number 4 fits into 8 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2033062.0
Subtracting 8 from 8 leaves us with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 4

Step 8:
The number 4 fits into 6 1 times, leaving a remainder of 2.
The next digit of our result is 1. 
Result so far: 20330621.0
Subtract 4 from 6 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 9:
4 goes into 20 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 20330621.5
Deduct 20 from 20 and we're left 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.

Let's proceed to step 10:
If we divide 0 by 4, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 20330621.5
The remainder is 0 after subtracting 0 from 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 11:
4 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 20330621.5
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.

The final outcome is 20330621.5, with a leftover of 0.0.