Let's divide 128788 by 15
We're looking to find how many times 15 goes into 128788.

Advancing to step 1:
1 divided by 15 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 15

Let's proceed to step 2:
15 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 15

Let's proceed to step 3:
15 goes into 128 8 times with a remainder of 8.
The next digit of our result is 8. 
Result so far: 8.0
The remainder is 8 after subtracting 120 from 128.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 15

Let's proceed to step 4:
15 goes into 87 5 times with a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
If we take 75 away from 87, we end up with 12.
Append the next digit (8) from the dividend to 12 and continue with: 128 / 15

Let's proceed to step 5:
128 divided by 15 is 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 858.0
Deduct 120 from 128 and we're left with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 15

Let's proceed to step 6:
When dividing 88 by 15, we get 5 with a remainder of 13.
The next digit of our result is 5. 
Result so far: 8585.0
If we subtract 75 from 88, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
If we divide 130 by 15, we get 8 and a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 8585.8
Subtracting 120 from 130 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 8585.86
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
15 can be fit into 100 6 times, resulting in a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 8585.866
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 8585.866, and the remainder is 0.001.