Let's divide 15399 by 73
We're looking to find how many times 73 goes into 15399.

Let's proceed to step 1:
73 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
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 / 73

Moving on to step 2:
73 goes into 15 0 times with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Fetch the next digit (3) from the dividend, attach it to 15 and continue: 153 / 73

Let's proceed to step 3:
73 goes into 153 2 times with a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 7 after subtracting 146 from 153.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 73

Going ahead to step 4:
If we divide 79 by 73, we get 1 and a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtracting 73 from 79 leaves us with 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 73

Step 5:
If we divide 69 by 73, we get 0 and a remainder of 69.
The next digit of our result is 0. 
Result so far: 210.0
If we subtract 0 from 69, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 6:
73 goes into 690 9 times with a remainder of 33.
Use 9 as the next digit of our solution. 
Result so far: 210.9
Deduct 657 from 690 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 7:
73 goes into 330 4 times with a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 210.94
Deduct 292 from 330 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 8:
When dividing 380 by 73, we get 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 210.945
If we take 365 away from 380, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
150 divided by 73 is 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 210.9452
If we subtract 146 from 150, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
If we divide 40 by 73, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 210.9452
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
The number 73 fits into 400 5 times, leaving a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 210.945205
If we subtract 365 from 400, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 12:
If we divide 350 by 73, we get 4 and a remainder of 58.
Use 4 as the next digit of our solution. 
Result so far: 210.9452054
Subtract 292 from 350 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 13:
580 divided by 73 is 7 with a remainder of 69.
Record the quotient 7 as the next digit in the result. 
Result so far: 210.94520547
If we subtract 511 from 580, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

The final result is 210.94520547 with a remainder of 6.9e-08.