We look at the division of 99258099 by 225 
We want to figure out the number of times 99258099 can be divided by 225.

Going ahead to step 1:
225 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 225

Advancing to step 2:
When dividing 99 by 225, we get 0 with a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Fetch the next digit (2) from the dividend, attach it to 99 and continue: 992 / 225

Advancing to step 3:
992 divided by 225 is 4 with a remainder of 92.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 900 from 992, we get 92.
Take the next digit (5) from the dividend and append it to 92, then repeat: 925 / 225

Advancing to step 4:
925 divided by 225 is 4 with a remainder of 25.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Subtract 900 from 925 to get 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 225

Advancing to step 5:
If we divide 258 by 225, we get 1 and a remainder of 33.
The next digit of our result is 1. 
Result so far: 441.0
If we take 225 away from 258, we end up with 33.
Append the next digit (0) from the dividend to 33 and continue with: 330 / 225

Let's proceed to step 6:
When dividing 330 by 225, we get 1 with a remainder of 105.
Record the quotient 1 as the next digit in the result. 
Result so far: 4411.0
Subtract 225 from 330 to get 105.
Grab the next digit (9) from the dividend, add it to 105, then carry on: 1059 / 225

Moving on to step 7:
If we divide 1059 by 225, we get 4 and a remainder of 159.
Record the quotient 4 as the next digit in the result. 
Result so far: 44114.0
Deduct 900 from 1059 and we're left with 159.
Fetch the next digit (9) from the dividend, attach it to 159 and continue: 1599 / 225

Advancing to step 8:
225 can be fit into 1599 7 times, resulting in a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 441147.0
Deduct 1575 from 1599 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 9:
225 goes into 240 1 times with a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 441147.1
The remainder is 15 after subtracting 225 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 10:
225 can be fit into 150 0 times, resulting in a remainder of 150.
Put 0 as the next digit of the answer. 
Result so far: 441147.1
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 11:
225 goes into 1500 6 times with a remainder of 150.
Put 6 as the next digit of the answer. 
Result so far: 441147.106
Subtracting 1350 from 1500 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 12:
225 can be fit into 1500 6 times, resulting in a remainder of 150.
The next digit of our result is 6. 
Result so far: 441147.1066
If we subtract 1350 from 1500, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The quotient of the division is 441147.1066, and the remainder is 0.0015.