81531470 divided by 866 
Let's see how many times 866 fits into 81531470.

Step 1:
866 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 866

Let's proceed to step 2:
The number 866 fits into 81 0 times, leaving a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Grab the next digit (5) from the dividend, add it to 81, then carry on: 815 / 866

Going ahead to step 3:
866 goes into 815 0 times with a remainder of 815.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 815 after subtracting 0 from 815.
Bring next digit (3) of the dividend behind the 815 and repeat the process: 8153 / 866

Step 4:
When dividing 8153 by 866, we get 9 with a remainder of 359.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 7794 from 8153 and we're left with 359.
Append the next digit (1) from the dividend to 359 and continue with: 3591 / 866

On to step 5:
3591 divided by 866 is 4 with a remainder of 127.
Record the quotient 4 as the next digit in the result. 
Result so far: 94.0
Deduct 3464 from 3591 and we're left with 127.
Include the next digit (4) from the dividend after 127, then repeat: 1274 / 866

On to step 6:
The number 866 fits into 1274 1 times, leaving a remainder of 408.
Write down 1 as next digit of the result. 
Result so far: 941.0
Deduct 866 from 1274 and we're left with 408.
Grab the next digit (7) from the dividend, add it to 408, then carry on: 4087 / 866

Advancing to step 7:
4087 divided by 866 is 4 with a remainder of 623.
Write down 4 as next digit of the result. 
Result so far: 9414.0
If we take 3464 away from 4087, we end up with 623.
Grab the next digit (0) from the dividend, add it to 623, then carry on: 6230 / 866

Let's proceed to step 8:
866 can be fit into 6230 7 times, resulting in a remainder of 168.
The next digit of our result is 7. 
Result so far: 94147.0
If we subtract 6062 from 6230, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

On to step 9:
The number 866 fits into 1680 1 times, leaving a remainder of 814.
Record the quotient 1 as the next digit in the result. 
Result so far: 94147.1
Subtract 866 from 1680 to get 814.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8140, and continue the process.

Step 10:
The number 866 fits into 8140 9 times, leaving a remainder of 346.
Use 9 as the next digit of our solution. 
Result so far: 94147.19
Subtract 7794 from 8140 to get 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Step 11:
When dividing 3460 by 866, we get 3 with a remainder of 862.
The number 3 becomes the next digit in our result. 
Result so far: 94147.193
If we take 2598 away from 3460, we end up with 862.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8620, and continue the process.

Step 12:
866 can be fit into 8620 9 times, resulting in a remainder of 826.
Record the quotient 9 as the next digit in the result. 
Result so far: 94147.1939
If we subtract 7794 from 8620, we get 826.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8260, and continue the process.

Let's proceed to step 13:
866 can be fit into 8260 9 times, resulting in a remainder of 466.
Use 9 as the next digit of our solution. 
Result so far: 94147.19399
The remainder is 466 after subtracting 7794 from 8260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

The quotient of the division is 94147.19399, and the remainder is 0.000466.