We're dividing 15990 by 74 
We want to divide 15990 by 74.

Let's proceed to step 1:
The number 74 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 74

Advancing to step 2:
The number 74 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Fetch the next digit (9) from the dividend, attach it to 15 and continue: 159 / 74

Moving on to step 3:
74 goes into 159 2 times with a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 11 after subtracting 148 from 159.
Append the next digit (9) from the dividend to 11 and continue with: 119 / 74

Advancing to step 4:
The number 74 fits into 119 1 times, leaving a remainder of 45.
Write down 1 as next digit of the result. 
Result so far: 21.0
The remainder is 45 after subtracting 74 from 119.
Take the next digit (0) from the dividend and append it to 45, then repeat: 450 / 74

Moving on to step 5:
74 can be fit into 450 6 times, resulting in a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 216.0
Subtracting 444 from 450 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 6:
74 can be fit into 60 0 times, resulting in a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 216.0
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 7:
74 can be fit into 600 8 times, resulting in a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 216.08
Subtracting 592 from 600 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
80 divided by 74 is 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 216.081
Deduct 74 from 80 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
60 divided by 74 is 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 216.081
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
74 goes into 600 8 times with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 216.08108
The remainder is 8 after subtracting 592 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 11:
74 goes into 80 1 times with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 216.081081
Subtracting 74 from 80 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 12:
If we divide 60 by 74, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 216.081081
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 13:
If we divide 600 by 74, we get 8 and a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 216.08108108
Subtracting 592 from 600 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 216.08108108 with a balance of 8e-09.