99040028 ÷ 25 
We're looking to find how many times 25 goes into 99040028.

Advancing to step 1:
9 divided by 25 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 25

Moving on to step 2:
When dividing 99 by 25, we get 3 with a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 75 from 99 leaves us with 24.
Append the next digit (0) from the dividend to 24 and continue with: 240 / 25

Moving on to step 3:
240 divided by 25 is 9 with a remainder of 15.
The next digit of our result is 9. 
Result so far: 39.0
Deduct 225 from 240 and we're left with 15.
Fetch the next digit (4) from the dividend, attach it to 15 and continue: 154 / 25

On to step 4:
If we divide 154 by 25, we get 6 and a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 396.0
Subtract 150 from 154 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 25

On to step 5:
25 goes into 40 1 times with a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 3961.0
The remainder is 15 after subtracting 25 from 40.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 25

Step 6:
If we divide 150 by 25, we get 6 and a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 39616.0
If we take 150 away from 150, we end up with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 25

On to step 7:
2 divided by 25 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 396160.0
Subtract 0 from 2 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 25

On to step 8:
25 can be fit into 28 1 times, resulting in a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 3961601.0
Deduct 25 from 28 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 9:
The number 25 fits into 30 1 times, leaving a remainder of 5.
The next digit of our result is 1. 
Result so far: 3961601.1
Subtracting 25 from 30 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
25 goes into 50 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 3961601.12
If we subtract 50 from 50, 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.

Going ahead to step 11:
25 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3961601.12
Subtract 0 from 0 to 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.

Going ahead to step 12:
25 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3961601.12
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 3961601.12 and a remainder of 0.0.