We're dividing 90877271 by 900 
We want to figure out the number of times 90877271 can be divided by 900.

Step 1:
When dividing 9 by 900, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 900

Going ahead to step 2:
90 divided by 900 is 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Take the next digit (8) from the dividend and append it to 90, then repeat: 908 / 900

Advancing to step 3:
908 divided by 900 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 900 from 908 leaves us with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 900

On to step 4:
If we divide 87 by 900, we get 0 and a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 87 leaves us with 87.
Bring next digit (7) of the dividend behind the 87 and repeat the process: 877 / 900

Step 5:
The number 900 fits into 877 0 times, leaving a remainder of 877.
Use 0 as the next digit of our solution. 
Result so far: 100.0
The remainder is 877 after subtracting 0 from 877.
Append the next digit (2) from the dividend to 877 and continue with: 8772 / 900

Step 6:
The number 900 fits into 8772 9 times, leaving a remainder of 672.
Record the quotient 9 as the next digit in the result. 
Result so far: 1009.0
Subtracting 8100 from 8772 leaves us with 672.
Bring next digit (7) of the dividend behind the 672 and repeat the process: 6727 / 900

Let's proceed to step 7:
If we divide 6727 by 900, we get 7 and a remainder of 427.
Write down 7 as next digit of the result. 
Result so far: 10097.0
The remainder is 427 after subtracting 6300 from 6727.
Fetch the next digit (1) from the dividend, attach it to 427 and continue: 4271 / 900

Step 8:
The number 900 fits into 4271 4 times, leaving a remainder of 671.
Write down 4 as next digit of the result. 
Result so far: 100974.0
Subtract 3600 from 4271 to get 671.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6710, and continue the process.

On to step 9:
900 can be fit into 6710 7 times, resulting in a remainder of 410.
Record the quotient 7 as the next digit in the result. 
Result so far: 100974.7
The remainder is 410 after subtracting 6300 from 6710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 10:
4100 divided by 900 is 4 with a remainder of 500.
Put 4 as the next digit of the answer. 
Result so far: 100974.74
If we subtract 3600 from 4100, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Moving on to step 11:
When dividing 5000 by 900, we get 5 with a remainder of 500.
Put 5 as the next digit of the answer. 
Result so far: 100974.745
Deduct 4500 from 5000 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

On to step 12:
5000 divided by 900 is 5 with a remainder of 500.
Use 5 as the next digit of our solution. 
Result so far: 100974.7455
Deduct 4500 from 5000 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final outcome is 100974.7455, with a leftover of 0.005.