We divide 309448 by 81
Let's see how many times 81 fits into 309448.

Moving on 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
Deduct 0 from 3 and we're left with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 81

Let's proceed to step 2:
When dividing 30 by 81, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Take the next digit (9) from the dividend and append it to 30, then repeat: 309 / 81

Step 3:
When dividing 309 by 81, we get 3 with a remainder of 66.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 243 from 309 leaves us with 66.
Take the next digit (4) from the dividend and append it to 66, then repeat: 664 / 81

Step 4:
When dividing 664 by 81, we get 8 with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
If we take 648 away from 664, we end up with 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 81

Going ahead to step 5:
81 goes into 164 2 times with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 382.0
Subtract 162 from 164 to get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 81

Step 6:
81 can be fit into 28 0 times, resulting in a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 3820.0
If we take 0 away from 28, we end up 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.

Moving on to step 7:
81 goes into 280 3 times with a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 3820.3
The remainder is 37 after subtracting 243 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 8:
The number 81 fits into 370 4 times, leaving a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 3820.34
Deduct 324 from 370 and we're left 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.

Going ahead to step 9:
If we divide 460 by 81, we get 5 and a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 3820.345
Deduct 405 from 460 and we're left 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.

Moving on to step 10:
When dividing 550 by 81, we get 6 with a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 3820.3456
If we subtract 486 from 550, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 11:
The number 81 fits into 640 7 times, leaving a remainder of 73.
Put 7 as the next digit of the answer. 
Result so far: 3820.34567
Subtracting 567 from 640 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 12:
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: 3820.345679
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.

Advancing to step 13:
When dividing 10 by 81, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 3820.345679
Deduct 0 from 10 and we're left 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.

Going ahead to step 14:
81 goes into 100 1 times with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 3820.34567901
Subtract 81 from 100 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Our division results in 3820.34567901 with a remaining 1.9e-08.