81897454 ÷ 316 
We want to divide 81897454 by 316.

Let's proceed to step 1:
When dividing 8 by 316, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 316

Step 2:
The number 316 fits into 81 0 times, leaving a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Append the next digit (8) from the dividend to 81 and continue with: 818 / 316

Moving on to step 3:
When dividing 818 by 316, we get 2 with a remainder of 186.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 632 away from 818, we end up with 186.
Append the next digit (9) from the dividend to 186 and continue with: 1869 / 316

Step 4:
If we divide 1869 by 316, we get 5 and a remainder of 289.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtracting 1580 from 1869 leaves us with 289.
Grab the next digit (7) from the dividend, add it to 289, then carry on: 2897 / 316

Advancing to step 5:
When dividing 2897 by 316, we get 9 with a remainder of 53.
Write down 9 as next digit of the result. 
Result so far: 259.0
Subtract 2844 from 2897 to get 53.
Include the next digit (4) from the dividend after 53, then repeat: 534 / 316

Advancing to step 6:
316 can be fit into 534 1 times, resulting in a remainder of 218.
Write down 1 as next digit of the result. 
Result so far: 2591.0
The remainder is 218 after subtracting 316 from 534.
Fetch the next digit (5) from the dividend, attach it to 218 and continue: 2185 / 316

Step 7:
2185 divided by 316 is 6 with a remainder of 289.
Record the quotient 6 as the next digit in the result. 
Result so far: 25916.0
If we take 1896 away from 2185, we end up with 289.
Append the next digit (4) from the dividend to 289 and continue with: 2894 / 316

Going ahead to step 8:
2894 divided by 316 is 9 with a remainder of 50.
Use 9 as the next digit of our solution. 
Result so far: 259169.0
Deduct 2844 from 2894 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
When dividing 500 by 316, we get 1 with a remainder of 184.
The number 1 becomes the next digit in our result. 
Result so far: 259169.1
If we subtract 316 from 500, we get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

On to step 10:
The number 316 fits into 1840 5 times, leaving a remainder of 260.
Record the quotient 5 as the next digit in the result. 
Result so far: 259169.15
If we take 1580 away from 1840, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 11:
316 goes into 2600 8 times with a remainder of 72.
The number 8 becomes the next digit in our result. 
Result so far: 259169.158
The remainder is 72 after subtracting 2528 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 12:
The number 316 fits into 720 2 times, leaving a remainder of 88.
Put 2 as the next digit of the answer. 
Result so far: 259169.1582
If we take 632 away from 720, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 13:
The number 316 fits into 880 2 times, leaving a remainder of 248.
The next digit of our result is 2. 
Result so far: 259169.15822
If we subtract 632 from 880, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

The final outcome is 259169.15822, with a leftover of 0.000248.