We divide 39012579 by 900
We want to figure out the number of times 39012579 can be divided by 900.

Step 1:
The number 900 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 900

Moving on to step 2:
The number 900 fits into 39 0 times, leaving a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Append the next digit (0) from the dividend to 39 and continue with: 390 / 900

On to step 3:
900 goes into 390 0 times with a remainder of 390.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 390 leaves us with 390.
Take the next digit (1) from the dividend and append it to 390, then repeat: 3901 / 900

On to step 4:
900 can be fit into 3901 4 times, resulting in a remainder of 301.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 3600 from 3901 leaves us with 301.
Take the next digit (2) from the dividend and append it to 301, then repeat: 3012 / 900

On to step 5:
900 goes into 3012 3 times with a remainder of 312.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
Deduct 2700 from 3012 and we're left with 312.
Grab the next digit (5) from the dividend, add it to 312, then carry on: 3125 / 900

Step 6:
3125 divided by 900 is 3 with a remainder of 425.
Record the quotient 3 as the next digit in the result. 
Result so far: 433.0
If we take 2700 away from 3125, we end up with 425.
Include the next digit (7) from the dividend after 425, then repeat: 4257 / 900

On to step 7:
900 can be fit into 4257 4 times, resulting in a remainder of 657.
Use 4 as the next digit of our solution. 
Result so far: 4334.0
If we take 3600 away from 4257, we end up with 657.
Grab the next digit (9) from the dividend, add it to 657, then carry on: 6579 / 900

Going ahead to step 8:
900 goes into 6579 7 times with a remainder of 279.
The next digit of our result is 7. 
Result so far: 43347.0
Subtracting 6300 from 6579 leaves us with 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Going ahead to step 9:
900 goes into 2790 3 times with a remainder of 90.
Put 3 as the next digit of the answer. 
Result so far: 43347.3
Deduct 2700 from 2790 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 10:
If we divide 900 by 900, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 43347.31
Subtracting 900 from 900 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
0 divided by 900 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 43347.31
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
900 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 43347.31
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 43347.31, with a leftover of 0.0.