77542352 divided by 866 
We want to figure out the number of times 77542352 can be divided by 866.

On to step 1:
7 divided by 866 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 866

Let's proceed to step 2:
866 can be fit into 77 0 times, resulting in a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Bring next digit (5) of the dividend behind the 77 and repeat the process: 775 / 866

Going ahead to step 3:
If we divide 775 by 866, we get 0 and a remainder of 775.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 775 after subtracting 0 from 775.
Take the next digit (4) from the dividend and append it to 775, then repeat: 7754 / 866

Going ahead to step 4:
866 goes into 7754 8 times with a remainder of 826.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 6928 from 7754 and we're left with 826.
Bring next digit (2) of the dividend behind the 826 and repeat the process: 8262 / 866

Let's proceed to step 5:
The number 866 fits into 8262 9 times, leaving a remainder of 468.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
Subtracting 7794 from 8262 leaves us with 468.
Take the next digit (3) from the dividend and append it to 468, then repeat: 4683 / 866

Going ahead to step 6:
The number 866 fits into 4683 5 times, leaving a remainder of 353.
Write down 5 as next digit of the result. 
Result so far: 895.0
If we subtract 4330 from 4683, we get 353.
Include the next digit (5) from the dividend after 353, then repeat: 3535 / 866

On to step 7:
866 can be fit into 3535 4 times, resulting in a remainder of 71.
The next digit of our result is 4. 
Result so far: 8954.0
Deduct 3464 from 3535 and we're left with 71.
Take the next digit (2) from the dividend and append it to 71, then repeat: 712 / 866

Advancing to step 8:
866 can be fit into 712 0 times, resulting in a remainder of 712.
Put 0 as the next digit of the answer. 
Result so far: 89540.0
If we subtract 0 from 712, we get 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

Step 9:
866 can be fit into 7120 8 times, resulting in a remainder of 192.
The next digit of our result is 8. 
Result so far: 89540.8
Subtract 6928 from 7120 to get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 10:
The number 866 fits into 1920 2 times, leaving a remainder of 188.
Use 2 as the next digit of our solution. 
Result so far: 89540.82
The remainder is 188 after subtracting 1732 from 1920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Step 11:
The number 866 fits into 1880 2 times, leaving a remainder of 148.
Use 2 as the next digit of our solution. 
Result so far: 89540.822
The remainder is 148 after subtracting 1732 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

After the division, we end up with 89540.822 and a remainder of 0.0148.