Let's divide 353819 by 81
We're looking to find how many times 81 goes into 353819.

Advancing to step 1:
81 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 81

Moving on to step 2:
81 goes into 35 0 times with a remainder of 35.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 35 after subtracting 0 from 35.
Bring next digit (3) of the dividend behind the 35 and repeat the process: 353 / 81

Moving on to step 3:
353 divided by 81 is 4 with a remainder of 29.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 324 from 353 and we're left with 29.
Include the next digit (8) from the dividend after 29, then repeat: 298 / 81

Moving on to step 4:
When dividing 298 by 81, we get 3 with a remainder of 55.
The next digit of our result is 3. 
Result so far: 43.0
Subtracting 243 from 298 leaves us with 55.
Fetch the next digit (1) from the dividend, attach it to 55 and continue: 551 / 81

On to step 5:
81 can be fit into 551 6 times, resulting in a remainder of 65.
Use 6 as the next digit of our solution. 
Result so far: 436.0
The remainder is 65 after subtracting 486 from 551.
Take the next digit (9) from the dividend and append it to 65, then repeat: 659 / 81

Let's proceed to step 6:
659 divided by 81 is 8 with a remainder of 11.
The next digit of our result is 8. 
Result so far: 4368.0
Subtracting 648 from 659 leaves us 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.

On to step 7:
The number 81 fits into 110 1 times, leaving a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 4368.1
If we take 81 away from 110, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 8:
When dividing 290 by 81, we get 3 with a remainder of 47.
The next digit of our result is 3. 
Result so far: 4368.13
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.

Advancing to step 9:
81 can be fit into 470 5 times, resulting in a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 4368.135
If we subtract 405 from 470, we 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:
When dividing 650 by 81, we get 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 4368.1358
Deduct 648 from 650 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
81 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 4368.1358
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 12:
200 divided by 81 is 2 with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 4368.135802
The remainder is 38 after subtracting 162 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 13:
The number 81 fits into 380 4 times, leaving a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 4368.1358024
Subtract 324 from 380 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 14:
When dividing 560 by 81, we get 6 with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 4368.13580246
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.

The final outcome is 4368.13580246, with a leftover of 7.4e-08.