353699 divided by 81 
We want to figure out the number of times 353699 can be divided by 81.

Let's proceed to step 1:
81 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 81

Let's proceed to step 2:
35 divided by 81 is 0 with a remainder of 35.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 35 after subtracting 0 from 35.
Include the next digit (3) from the dividend after 35, then repeat: 353 / 81

Going ahead to step 3:
353 divided by 81 is 4 with a remainder of 29.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 324 from 353 leaves us with 29.
Append the next digit (6) from the dividend to 29 and continue with: 296 / 81

Advancing to step 4:
81 can be fit into 296 3 times, resulting in a remainder of 53.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
The remainder is 53 after subtracting 243 from 296.
Include the next digit (9) from the dividend after 53, then repeat: 539 / 81

Moving on to step 5:
81 can be fit into 539 6 times, resulting in a remainder of 53.
Write down 6 as next digit of the result. 
Result so far: 436.0
The remainder is 53 after subtracting 486 from 539.
Take the next digit (9) from the dividend and append it to 53, then repeat: 539 / 81

On to step 6:
81 goes into 539 6 times with a remainder of 53.
Use 6 as the next digit of our solution. 
Result so far: 4366.0
If we subtract 486 from 539, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 7:
The number 81 fits into 530 6 times, leaving a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 4366.6
If we take 486 away from 530, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 8:
The number 81 fits into 440 5 times, leaving a remainder of 35.
The next digit of our result is 5. 
Result so far: 4366.65
Subtracting 405 from 440 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 9:
81 can be fit into 350 4 times, resulting in a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 4366.654
If we take 324 away from 350, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 10:
81 can be fit into 260 3 times, resulting in a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 4366.6543
Subtracting 243 from 260 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 11:
When dividing 170 by 81, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 4366.65432
Subtract 162 from 170 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 12:
81 can be fit into 80 0 times, resulting in a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 4366.65432
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 13:
The number 81 fits into 800 9 times, leaving a remainder of 71.
Record the quotient 9 as the next digit in the result. 
Result so far: 4366.6543209
Subtract 729 from 800 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 14:
81 goes into 710 8 times with a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 4366.65432098
Deduct 648 from 710 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

The final result is 4366.65432098 with a remainder of 6.2e-08.