381840 divided by 81 
We want to figure out the number of times 381840 can be divided by 81.

On to step 1:
If we divide 3 by 81, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 81

On to step 2:
The number 81 fits into 38 0 times, leaving a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 38 after subtracting 0 from 38.
Bring next digit (1) of the dividend behind the 38 and repeat the process: 381 / 81

Advancing to step 3:
81 can be fit into 381 4 times, resulting in a remainder of 57.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 57 after subtracting 324 from 381.
Bring next digit (8) of the dividend behind the 57 and repeat the process: 578 / 81

Step 4:
When dividing 578 by 81, we get 7 with a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 47.0
Subtracting 567 from 578 leaves us with 11.
Include the next digit (4) from the dividend after 11, then repeat: 114 / 81

Going ahead to step 5:
114 divided by 81 is 1 with a remainder of 33.
Record the quotient 1 as the next digit in the result. 
Result so far: 471.0
If we take 81 away from 114, we end up with 33.
Grab the next digit (0) from the dividend, add it to 33, then carry on: 330 / 81

Let's proceed to step 6:
When dividing 330 by 81, we get 4 with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 4714.0
Deduct 324 from 330 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
81 can be fit into 60 0 times, resulting in a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 4714.0
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 8:
81 goes into 600 7 times with a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 4714.07
If we subtract 567 from 600, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 9:
If we divide 330 by 81, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 4714.074
Deduct 324 from 330 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
81 can be fit into 60 0 times, resulting in a remainder of 60.
The next digit of our result is 0. 
Result so far: 4714.074
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
81 goes into 600 7 times with a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 4714.07407
Subtract 567 from 600 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 12:
81 goes into 330 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 4714.074074
If we subtract 324 from 330, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 13:
81 goes into 60 0 times with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 4714.074074
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 14:
If we divide 600 by 81, we get 7 and a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 4714.07407407
Subtracting 567 from 600 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

In conclusion, the division gives 4714.07407407 with a balance of 3.3e-08.