317451 divided by 81 
We want to figure out the number of times 317451 can be divided by 81.

On to step 1:
The number 81 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 81

On to step 2:
If we divide 31 by 81, we get 0 and a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Fetch the next digit (7) from the dividend, attach it to 31 and continue: 317 / 81

Moving on to step 3:
When dividing 317 by 81, we get 3 with a remainder of 74.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 243 from 317 leaves us with 74.
Bring next digit (4) of the dividend behind the 74 and repeat the process: 744 / 81

Let's proceed to step 4:
81 can be fit into 744 9 times, resulting in a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 39.0
Deduct 729 from 744 and we're left with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 81

Step 5:
When dividing 155 by 81, we get 1 with a remainder of 74.
Record the quotient 1 as the next digit in the result. 
Result so far: 391.0
Deduct 81 from 155 and we're left with 74.
Append the next digit (1) from the dividend to 74 and continue with: 741 / 81

Let's proceed to step 6:
81 can be fit into 741 9 times, resulting in a remainder of 12.
The next digit of our result is 9. 
Result so far: 3919.0
The remainder is 12 after subtracting 729 from 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
The number 81 fits into 120 1 times, leaving a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 3919.1
The remainder is 39 after subtracting 81 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 8:
If we divide 390 by 81, we get 4 and a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 3919.14
Deduct 324 from 390 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 9:
81 goes into 660 8 times with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 3919.148
If we take 648 away from 660, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
120 divided by 81 is 1 with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 3919.1481
If we take 81 away from 120, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 11:
The number 81 fits into 390 4 times, leaving a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 3919.14814
Subtract 324 from 390 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 12:
If we divide 660 by 81, we get 8 and a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 3919.148148
Deduct 648 from 660 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 13:
81 goes into 120 1 times with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 3919.1481481
Subtracting 81 from 120 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 14:
When dividing 390 by 81, we get 4 with a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 3919.14814814
The remainder is 66 after subtracting 324 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final result is 3919.14814814 with a remainder of 6.6e-08.