397810 ÷ 81 
We're looking to find how many times 81 goes into 397810.

Advancing to step 1:
81 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 81

On to step 2:
If we divide 39 by 81, we get 0 and a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Take the next digit (7) from the dividend and append it to 39, then repeat: 397 / 81

Moving on to step 3:
397 divided by 81 is 4 with a remainder of 73.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 324 away from 397, we end up with 73.
Fetch the next digit (8) from the dividend, attach it to 73 and continue: 738 / 81

On to step 4:
When dividing 738 by 81, we get 9 with a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
Deduct 729 from 738 and we're left with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 81

Moving on to step 5:
91 divided by 81 is 1 with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 491.0
The remainder is 10 after subtracting 81 from 91.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 81

Step 6:
81 can be fit into 100 1 times, resulting in a remainder of 19.
The next digit of our result is 1. 
Result so far: 4911.0
If we take 81 away from 100, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
190 divided by 81 is 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 4911.2
Subtracting 162 from 190 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 8:
If we divide 280 by 81, we get 3 and a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 4911.23
If we take 243 away from 280, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 9:
If we divide 370 by 81, we get 4 and a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 4911.234
If we take 324 away from 370, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 10:
81 goes into 460 5 times with a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 4911.2345
Subtracting 405 from 460 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 11:
81 goes into 550 6 times with a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 4911.23456
Subtracting 486 from 550 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 12:
81 can be fit into 640 7 times, resulting in a remainder of 73.
The number 7 becomes the next digit in our result. 
Result so far: 4911.234567
If we subtract 567 from 640, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 13:
When dividing 730 by 81, we get 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 4911.2345679
The remainder is 1 after subtracting 729 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 14:
10 divided by 81 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 4911.2345679
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 4911.2345679 with a remainder of 1e-08.