We're dividing 338510 by 81 
We want to divide 338510 by 81.

Going ahead 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
If we subtract 0 from 3, we get 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 81

Step 2:
If we divide 33 by 81, we get 0 and a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 33 leaves us with 33.
Include the next digit (8) from the dividend after 33, then repeat: 338 / 81

Advancing to step 3:
338 divided by 81 is 4 with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 324 from 338 leaves us with 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 81

Advancing to step 4:
145 divided by 81 is 1 with a remainder of 64.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
If we subtract 81 from 145, we get 64.
Grab the next digit (1) from the dividend, add it to 64, then carry on: 641 / 81

Advancing to step 5:
If we divide 641 by 81, we get 7 and a remainder of 74.
The number 7 becomes the next digit in our result. 
Result so far: 417.0
Subtract 567 from 641 to get 74.
Fetch the next digit (0) from the dividend, attach it to 74 and continue: 740 / 81

Advancing to step 6:
81 goes into 740 9 times with a remainder of 11.
The next digit of our result is 9. 
Result so far: 4179.0
Deduct 729 from 740 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
81 goes into 110 1 times with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 4179.1
Subtract 81 from 110 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 8:
The number 81 fits into 290 3 times, leaving a remainder of 47.
The next digit of our result is 3. 
Result so far: 4179.13
Subtracting 243 from 290 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 9:
470 divided by 81 is 5 with a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 4179.135
Subtract 405 from 470 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 10:
The number 81 fits into 650 8 times, leaving a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 4179.1358
Subtract 648 from 650 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.

On to step 11:
When dividing 20 by 81, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 4179.1358
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 12:
81 goes into 200 2 times with a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 4179.135802
If we subtract 162 from 200, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 13:
When dividing 380 by 81, we get 4 with a remainder of 56.
The next digit of our result is 4. 
Result so far: 4179.1358024
Deduct 324 from 380 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 14:
81 goes into 560 6 times with a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 4179.13580246
If we subtract 486 from 560, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Our division results in 4179.13580246 with a remaining 7.4e-08.