We're dividing 865123 by 75 
Our goal is to divide 865123 by 75.

Going ahead to step 1:
8 divided by 75 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 75

Step 2:
When dividing 86 by 75, we get 1 with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 11 after subtracting 75 from 86.
Fetch the next digit (5) from the dividend, attach it to 11 and continue: 115 / 75

Step 3:
75 goes into 115 1 times with a remainder of 40.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtracting 75 from 115 leaves us with 40.
Fetch the next digit (1) from the dividend, attach it to 40 and continue: 401 / 75

Moving on to step 4:
When dividing 401 by 75, we get 5 with a remainder of 26.
Put 5 as the next digit of the answer. 
Result so far: 115.0
Deduct 375 from 401 and we're left with 26.
Fetch the next digit (2) from the dividend, attach it to 26 and continue: 262 / 75

Moving on to step 5:
262 divided by 75 is 3 with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 1153.0
If we subtract 225 from 262, we get 37.
Fetch the next digit (3) from the dividend, attach it to 37 and continue: 373 / 75

Moving on to step 6:
When dividing 373 by 75, we get 4 with a remainder of 73.
Put 4 as the next digit of the answer. 
Result so far: 11534.0
If we take 300 away from 373, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 7:
75 goes into 730 9 times with a remainder of 55.
The next digit of our result is 9. 
Result so far: 11534.9
Deduct 675 from 730 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 8:
If we divide 550 by 75, we get 7 and a remainder of 25.
Write down 7 as next digit of the result. 
Result so far: 11534.97
If we subtract 525 from 550, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 9:
The number 75 fits into 250 3 times, leaving a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 11534.973
Subtract 225 from 250 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 10:
If we divide 250 by 75, we get 3 and a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 11534.9733
Subtracting 225 from 250 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

In conclusion, the division gives 11534.9733 with a balance of 0.00025.