Let's divide 355424 by 81
Our goal is to divide 355424 by 81.

Moving on to step 1:
The number 81 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 81

Advancing to step 2:
81 can be fit into 35 0 times, resulting in a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Append the next digit (5) from the dividend to 35 and continue with: 355 / 81

Going ahead to step 3:
355 divided by 81 is 4 with a remainder of 31.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 324 away from 355, we end up with 31.
Grab the next digit (4) from the dividend, add it to 31, then carry on: 314 / 81

Advancing to step 4:
The number 81 fits into 314 3 times, leaving a remainder of 71.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
Subtracting 243 from 314 leaves us with 71.
Include the next digit (2) from the dividend after 71, then repeat: 712 / 81

Advancing to step 5:
712 divided by 81 is 8 with a remainder of 64.
Put 8 as the next digit of the answer. 
Result so far: 438.0
Subtract 648 from 712 to get 64.
Include the next digit (4) from the dividend after 64, then repeat: 644 / 81

Going ahead to step 6:
644 divided by 81 is 7 with a remainder of 77.
Write down 7 as next digit of the result. 
Result so far: 4387.0
If we subtract 567 from 644, we get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 7:
81 goes into 770 9 times with a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 4387.9
The remainder is 41 after subtracting 729 from 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 8:
When dividing 410 by 81, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 4387.95
If we subtract 405 from 410, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
The number 81 fits into 50 0 times, leaving a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 4387.95
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
The number 81 fits into 500 6 times, leaving a remainder of 14.
The next digit of our result is 6. 
Result so far: 4387.9506
Deduct 486 from 500 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
81 can be fit into 140 1 times, resulting in a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 4387.95061
Subtracting 81 from 140 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 12:
When dividing 590 by 81, we get 7 with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 4387.950617
Deduct 567 from 590 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 13:
230 divided by 81 is 2 with a remainder of 68.
The next digit of our result is 2. 
Result so far: 4387.9506172
The remainder is 68 after subtracting 162 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 14:
When dividing 680 by 81, we get 8 with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 4387.95061728
Subtract 648 from 680 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 4387.95061728 and a remainder of 3.2e-08.