We look at the division of 15389552 by 900 
We want to divide 15389552 by 900.

Going ahead to step 1:
When dividing 1 by 900, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 900

Advancing to step 2:
The number 900 fits into 15 0 times, leaving a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 900

On to step 3:
153 divided by 900 is 0 with a remainder of 153.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 153, we get 153.
Fetch the next digit (8) from the dividend, attach it to 153 and continue: 1538 / 900

Advancing to step 4:
If we divide 1538 by 900, we get 1 and a remainder of 638.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 900 from 1538 to get 638.
Take the next digit (9) from the dividend and append it to 638, then repeat: 6389 / 900

Step 5:
900 goes into 6389 7 times with a remainder of 89.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Deduct 6300 from 6389 and we're left with 89.
Include the next digit (5) from the dividend after 89, then repeat: 895 / 900

Let's proceed to step 6:
If we divide 895 by 900, we get 0 and a remainder of 895.
Record the quotient 0 as the next digit in the result. 
Result so far: 170.0
If we subtract 0 from 895, we get 895.
Grab the next digit (5) from the dividend, add it to 895, then carry on: 8955 / 900

Step 7:
900 goes into 8955 9 times with a remainder of 855.
Put 9 as the next digit of the answer. 
Result so far: 1709.0
If we take 8100 away from 8955, we end up with 855.
Take the next digit (2) from the dividend and append it to 855, then repeat: 8552 / 900

Advancing to step 8:
8552 divided by 900 is 9 with a remainder of 452.
Use 9 as the next digit of our solution. 
Result so far: 17099.0
The remainder is 452 after subtracting 8100 from 8552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Moving on to step 9:
The number 900 fits into 4520 5 times, leaving a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 17099.5
Subtracting 4500 from 4520 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
900 can be fit into 200 0 times, resulting in a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 17099.5
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 11:
2000 divided by 900 is 2 with a remainder of 200.
Write down 2 as next digit of the result. 
Result so far: 17099.502
The remainder is 200 after subtracting 1800 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 12:
900 goes into 2000 2 times with a remainder of 200.
Write down 2 as next digit of the result. 
Result so far: 17099.5022
The remainder is 200 after subtracting 1800 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 17099.5022 with a remainder of 0.002.