81586771 ÷ 316 
Let's see how many times 316 fits into 81586771.

On to step 1:
When dividing 8 by 316, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 316

Advancing to step 2:
If we divide 81 by 316, we get 0 and a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 316

Step 3:
316 goes into 815 2 times with a remainder of 183.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 632 away from 815, we end up with 183.
Grab the next digit (8) from the dividend, add it to 183, then carry on: 1838 / 316

On to step 4:
316 can be fit into 1838 5 times, resulting in a remainder of 258.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
Deduct 1580 from 1838 and we're left with 258.
Fetch the next digit (6) from the dividend, attach it to 258 and continue: 2586 / 316

Moving on to step 5:
When dividing 2586 by 316, we get 8 with a remainder of 58.
The number 8 becomes the next digit in our result. 
Result so far: 258.0
Subtracting 2528 from 2586 leaves us with 58.
Bring next digit (7) of the dividend behind the 58 and repeat the process: 587 / 316

Going ahead to step 6:
587 divided by 316 is 1 with a remainder of 271.
The number 1 becomes the next digit in our result. 
Result so far: 2581.0
Deduct 316 from 587 and we're left with 271.
Grab the next digit (7) from the dividend, add it to 271, then carry on: 2717 / 316

On to step 7:
316 goes into 2717 8 times with a remainder of 189.
Record the quotient 8 as the next digit in the result. 
Result so far: 25818.0
The remainder is 189 after subtracting 2528 from 2717.
Bring next digit (1) of the dividend behind the 189 and repeat the process: 1891 / 316

Moving on to step 8:
The number 316 fits into 1891 5 times, leaving a remainder of 311.
Use 5 as the next digit of our solution. 
Result so far: 258185.0
Subtracting 1580 from 1891 leaves us with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Moving on to step 9:
316 goes into 3110 9 times with a remainder of 266.
Use 9 as the next digit of our solution. 
Result so far: 258185.9
The remainder is 266 after subtracting 2844 from 3110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 10:
316 can be fit into 2660 8 times, resulting in a remainder of 132.
Put 8 as the next digit of the answer. 
Result so far: 258185.98
The remainder is 132 after subtracting 2528 from 2660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

On to step 11:
1320 divided by 316 is 4 with a remainder of 56.
The next digit of our result is 4. 
Result so far: 258185.984
If we subtract 1264 from 1320, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 12:
316 goes into 560 1 times with a remainder of 244.
The number 1 becomes the next digit in our result. 
Result so far: 258185.9841
If we subtract 316 from 560, we get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Advancing to step 13:
The number 316 fits into 2440 7 times, leaving a remainder of 228.
The number 7 becomes the next digit in our result. 
Result so far: 258185.98417
If we take 2212 away from 2440, we end up with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Moving on to step 14:
2280 divided by 316 is 7 with a remainder of 68.
Write down 7 as next digit of the result. 
Result so far: 258185.984177
The remainder is 68 after subtracting 2212 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

After the division, we end up with 258185.984177 and a remainder of 6.8e-06.