We're dividing 85761866 by 866 
We're looking to find how many times 866 goes into 85761866.

Moving on to step 1:
866 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 866

Going ahead to step 2:
The number 866 fits into 85 0 times, leaving a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Take the next digit (7) from the dividend and append it to 85, then repeat: 857 / 866

Advancing to step 3:
866 can be fit into 857 0 times, resulting in a remainder of 857.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 857, we get 857.
Fetch the next digit (6) from the dividend, attach it to 857 and continue: 8576 / 866

On to step 4:
866 goes into 8576 9 times with a remainder of 782.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
The remainder is 782 after subtracting 7794 from 8576.
Take the next digit (1) from the dividend and append it to 782, then repeat: 7821 / 866

Step 5:
The number 866 fits into 7821 9 times, leaving a remainder of 27.
Use 9 as the next digit of our solution. 
Result so far: 99.0
Subtract 7794 from 7821 to get 27.
Bring next digit (8) of the dividend behind the 27 and repeat the process: 278 / 866

Going ahead to step 6:
278 divided by 866 is 0 with a remainder of 278.
The number 0 becomes the next digit in our result. 
Result so far: 990.0
If we take 0 away from 278, we end up with 278.
Include the next digit (6) from the dividend after 278, then repeat: 2786 / 866

Let's proceed to step 7:
866 can be fit into 2786 3 times, resulting in a remainder of 188.
The number 3 becomes the next digit in our result. 
Result so far: 9903.0
Subtract 2598 from 2786 to get 188.
Include the next digit (6) from the dividend after 188, then repeat: 1886 / 866

Step 8:
When dividing 1886 by 866, we get 2 with a remainder of 154.
Use 2 as the next digit of our solution. 
Result so far: 99032.0
Subtracting 1732 from 1886 leaves us with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Moving on to step 9:
When dividing 1540 by 866, we get 1 with a remainder of 674.
Record the quotient 1 as the next digit in the result. 
Result so far: 99032.1
Deduct 866 from 1540 and we're left with 674.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6740, and continue the process.

Moving on to step 10:
If we divide 6740 by 866, we get 7 and a remainder of 678.
Record the quotient 7 as the next digit in the result. 
Result so far: 99032.17
Subtract 6062 from 6740 to get 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Let's proceed to step 11:
If we divide 6780 by 866, we get 7 and a remainder of 718.
Record the quotient 7 as the next digit in the result. 
Result so far: 99032.177
If we take 6062 away from 6780, we end up with 718.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7180, and continue the process.

The final outcome is 99032.177, with a leftover of 0.0718.