Let's divide 15599 by 15
We want to divide 15599 by 15.

Going ahead to step 1:
If we divide 1 by 15, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 15

Moving on to step 2:
15 goes into 15 1 times with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 15 from 15, we get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 15

Let's proceed to step 3:
15 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 15

Step 4:
15 can be fit into 59 3 times, resulting in a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 103.0
Subtracting 45 from 59 leaves us with 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 15

Moving on to step 5:
If we divide 149 by 15, we get 9 and a remainder of 14.
The number 9 becomes the next digit in our result. 
Result so far: 1039.0
If we subtract 135 from 149, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 6:
15 can be fit into 140 9 times, resulting in a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 1039.9
Deduct 135 from 140 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 7:
50 divided by 15 is 3 with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 1039.93
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 8:
If we divide 50 by 15, we get 3 and a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 1039.933
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 1039.933 with a remaining 0.0005.