Let's divide 90199110 by 900
We want to divide 90199110 by 900.

On to 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.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 900

On to step 2:
900 can be fit into 90 0 times, resulting in a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Grab the next digit (1) from the dividend, add it to 90, then carry on: 901 / 900

Going ahead to step 3:
The number 900 fits into 901 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 1 after subtracting 900 from 901.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 900

Let's proceed to step 4:
900 goes into 19 0 times with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 19 leaves us with 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 900

On to step 5:
900 goes into 199 0 times with a remainder of 199.
Record the quotient 0 as the next digit in the result. 
Result so far: 100.0
Deduct 0 from 199 and we're left with 199.
Append the next digit (1) from the dividend to 199 and continue with: 1991 / 900

Let's proceed to step 6:
If we divide 1991 by 900, we get 2 and a remainder of 191.
Write down 2 as next digit of the result. 
Result so far: 1002.0
Deduct 1800 from 1991 and we're left with 191.
Bring next digit (1) of the dividend behind the 191 and repeat the process: 1911 / 900

Step 7:
900 can be fit into 1911 2 times, resulting in a remainder of 111.
The next digit of our result is 2. 
Result so far: 10022.0
If we take 1800 away from 1911, we end up with 111.
Append the next digit (0) from the dividend to 111 and continue with: 1110 / 900

Moving on to step 8:
900 goes into 1110 1 times with a remainder of 210.
Use 1 as the next digit of our solution. 
Result so far: 100221.0
If we take 900 away from 1110, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 9:
900 goes into 2100 2 times with a remainder of 300.
Record the quotient 2 as the next digit in the result. 
Result so far: 100221.2
Subtract 1800 from 2100 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 10:
900 can be fit into 3000 3 times, resulting in a remainder of 300.
Record the quotient 3 as the next digit in the result. 
Result so far: 100221.23
If we subtract 2700 from 3000, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 11:
3000 divided by 900 is 3 with a remainder of 300.
Use 3 as the next digit of our solution. 
Result so far: 100221.233
Subtracting 2700 from 3000 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

After the division, we end up with 100221.233 and a remainder of 0.03.