409236 ÷ 81 
We're looking to find how many times 81 goes into 409236.

Let's proceed to step 1:
When dividing 4 by 81, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 81

On to step 2:
The number 81 fits into 40 0 times, leaving a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Bring next digit (9) of the dividend behind the 40 and repeat the process: 409 / 81

Let's proceed to step 3:
81 goes into 409 5 times with a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 405 from 409 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 81

Advancing to step 4:
If we divide 42 by 81, we get 0 and a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 50.0
If we take 0 away from 42, we end up with 42.
Bring next digit (3) of the dividend behind the 42 and repeat the process: 423 / 81

Moving on to step 5:
When dividing 423 by 81, we get 5 with a remainder of 18.
The next digit of our result is 5. 
Result so far: 505.0
If we take 405 away from 423, we end up with 18.
Bring next digit (6) of the dividend behind the 18 and repeat the process: 186 / 81

Let's proceed to step 6:
When dividing 186 by 81, we get 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 5052.0
Subtracting 162 from 186 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
81 goes into 240 2 times with a remainder of 78.
Record the quotient 2 as the next digit in the result. 
Result so far: 5052.2
The remainder is 78 after subtracting 162 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 8:
The number 81 fits into 780 9 times, leaving a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 5052.29
The remainder is 51 after subtracting 729 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 9:
The number 81 fits into 510 6 times, leaving a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 5052.296
If we take 486 away from 510, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
240 divided by 81 is 2 with a remainder of 78.
The next digit of our result is 2. 
Result so far: 5052.2962
Deduct 162 from 240 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 11:
The number 81 fits into 780 9 times, leaving a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 5052.29629
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 12:
The number 81 fits into 510 6 times, leaving a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 5052.296296
Subtracting 486 from 510 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 13:
If we divide 240 by 81, we get 2 and a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 5052.2962962
Deduct 162 from 240 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 14:
81 can be fit into 780 9 times, resulting in a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 5052.29629629
Subtracting 729 from 780 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Our division results in 5052.29629629 with a remaining 5.1e-08.