Let's divide 81315482 by 221
Our goal is to divide 81315482 by 221.

Advancing to step 1:
221 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 221

On to step 2:
The number 221 fits into 81 0 times, leaving a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Include the next digit (3) from the dividend after 81, then repeat: 813 / 221

On to step 3:
813 divided by 221 is 3 with a remainder of 150.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 150 after subtracting 663 from 813.
Bring next digit (1) of the dividend behind the 150 and repeat the process: 1501 / 221

Let's proceed to step 4:
If we divide 1501 by 221, we get 6 and a remainder of 175.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
If we subtract 1326 from 1501, we get 175.
Fetch the next digit (5) from the dividend, attach it to 175 and continue: 1755 / 221

Going ahead to step 5:
221 goes into 1755 7 times with a remainder of 208.
The number 7 becomes the next digit in our result. 
Result so far: 367.0
Subtracting 1547 from 1755 leaves us with 208.
Fetch the next digit (4) from the dividend, attach it to 208 and continue: 2084 / 221

Advancing to step 6:
The number 221 fits into 2084 9 times, leaving a remainder of 95.
The next digit of our result is 9. 
Result so far: 3679.0
The remainder is 95 after subtracting 1989 from 2084.
Fetch the next digit (8) from the dividend, attach it to 95 and continue: 958 / 221

Advancing to step 7:
When dividing 958 by 221, we get 4 with a remainder of 74.
The number 4 becomes the next digit in our result. 
Result so far: 36794.0
Subtract 884 from 958 to get 74.
Append the next digit (2) from the dividend to 74 and continue with: 742 / 221

Let's proceed to step 8:
When dividing 742 by 221, we get 3 with a remainder of 79.
Put 3 as the next digit of the answer. 
Result so far: 367943.0
The remainder is 79 after subtracting 663 from 742.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 9:
221 goes into 790 3 times with a remainder of 127.
Use 3 as the next digit of our solution. 
Result so far: 367943.3
The remainder is 127 after subtracting 663 from 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 10:
If we divide 1270 by 221, we get 5 and a remainder of 165.
Record the quotient 5 as the next digit in the result. 
Result so far: 367943.35
If we take 1105 away from 1270, we end up with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Let's proceed to step 11:
221 can be fit into 1650 7 times, resulting in a remainder of 103.
Write down 7 as next digit of the result. 
Result so far: 367943.357
Subtract 1547 from 1650 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Going ahead to step 12:
221 can be fit into 1030 4 times, resulting in a remainder of 146.
The number 4 becomes the next digit in our result. 
Result so far: 367943.3574
If we subtract 884 from 1030, we get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Advancing to step 13:
221 goes into 1460 6 times with a remainder of 134.
Use 6 as the next digit of our solution. 
Result so far: 367943.35746
Deduct 1326 from 1460 and we're left with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

On to step 14:
The number 221 fits into 1340 6 times, leaving a remainder of 14.
The next digit of our result is 6. 
Result so far: 367943.357466
If we subtract 1326 from 1340, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

In conclusion, the division gives 367943.357466 with a balance of 1.4e-06.