We look at the division of 85942166 by 866 
We want to divide 85942166 by 866.

On to step 1:
866 can be fit into 8 0 times, resulting in 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.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 866

Going ahead to step 2:
If we divide 85 by 866, we get 0 and a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 85 after subtracting 0 from 85.
Fetch the next digit (9) from the dividend, attach it to 85 and continue: 859 / 866

Let's proceed to step 3:
The number 866 fits into 859 0 times, leaving a remainder of 859.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 859 after subtracting 0 from 859.
Grab the next digit (4) from the dividend, add it to 859, then carry on: 8594 / 866

Let's proceed to step 4:
If we divide 8594 by 866, we get 9 and a remainder of 800.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 7794 from 8594 to get 800.
Append the next digit (2) from the dividend to 800 and continue with: 8002 / 866

Going ahead to step 5:
If we divide 8002 by 866, we get 9 and a remainder of 208.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
If we subtract 7794 from 8002, we get 208.
Bring next digit (1) of the dividend behind the 208 and repeat the process: 2081 / 866

Going ahead to step 6:
When dividing 2081 by 866, we get 2 with a remainder of 349.
The next digit of our result is 2. 
Result so far: 992.0
Deduct 1732 from 2081 and we're left with 349.
Take the next digit (6) from the dividend and append it to 349, then repeat: 3496 / 866

On to step 7:
The number 866 fits into 3496 4 times, leaving a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 9924.0
If we subtract 3464 from 3496, we get 32.
Fetch the next digit (6) from the dividend, attach it to 32 and continue: 326 / 866

Let's proceed to step 8:
866 can be fit into 326 0 times, resulting in a remainder of 326.
Put 0 as the next digit of the answer. 
Result so far: 99240.0
If we take 0 away from 326, we end up with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Moving on to step 9:
When dividing 3260 by 866, we get 3 with a remainder of 662.
The number 3 becomes the next digit in our result. 
Result so far: 99240.3
If we subtract 2598 from 3260, we get 662.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6620, and continue the process.

Advancing to step 10:
When dividing 6620 by 866, we get 7 with a remainder of 558.
Put 7 as the next digit of the answer. 
Result so far: 99240.37
If we subtract 6062 from 6620, we get 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Moving on to step 11:
866 can be fit into 5580 6 times, resulting in a remainder of 384.
Record the quotient 6 as the next digit in the result. 
Result so far: 99240.376
Deduct 5196 from 5580 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Step 12:
866 goes into 3840 4 times with a remainder of 376.
Write down 4 as next digit of the result. 
Result so far: 99240.3764
Deduct 3464 from 3840 and we're left with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Going ahead to step 13:
3760 divided by 866 is 4 with a remainder of 296.
The next digit of our result is 4. 
Result so far: 99240.37644
Subtracting 3464 from 3760 leaves us with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

After the division, we end up with 99240.37644 and a remainder of 0.000296.