We're dividing 866838 by 75 
Our goal is to divide 866838 by 75.

Advancing to step 1:
If we divide 8 by 75, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 75

On to step 2:
When dividing 86 by 75, we get 1 with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 75 from 86 and we're left with 11.
Bring next digit (6) of the dividend behind the 11 and repeat the process: 116 / 75

Step 3:
When dividing 116 by 75, we get 1 with a remainder of 41.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtracting 75 from 116 leaves us with 41.
Take the next digit (8) from the dividend and append it to 41, then repeat: 418 / 75

Let's proceed to step 4:
The number 75 fits into 418 5 times, leaving a remainder of 43.
Record the quotient 5 as the next digit in the result. 
Result so far: 115.0
If we take 375 away from 418, we end up with 43.
Append the next digit (3) from the dividend to 43 and continue with: 433 / 75

Moving on to step 5:
If we divide 433 by 75, we get 5 and a remainder of 58.
Record the quotient 5 as the next digit in the result. 
Result so far: 1155.0
If we subtract 375 from 433, we get 58.
Include the next digit (8) from the dividend after 58, then repeat: 588 / 75

Advancing to step 6:
If we divide 588 by 75, we get 7 and a remainder of 63.
Put 7 as the next digit of the answer. 
Result so far: 11557.0
If we take 525 away from 588, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 7:
75 can be fit into 630 8 times, resulting in a remainder of 30.
The next digit of our result is 8. 
Result so far: 11557.8
Subtracting 600 from 630 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
If we divide 300 by 75, we get 4 and a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 11557.84
If we subtract 300 from 300, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 75 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 11557.84
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
75 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11557.84
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 11557.84 with a remainder of 0.0.