Let's divide 99712438 by 225
We want to figure out the number of times 99712438 can be divided by 225.

Advancing to step 1:
The number 225 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 225

Moving on to step 2:
99 divided by 225 is 0 with a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Take the next digit (7) from the dividend and append it to 99, then repeat: 997 / 225

Going ahead to step 3:
225 goes into 997 4 times with a remainder of 97.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 900 from 997 and we're left with 97.
Take the next digit (1) from the dividend and append it to 97, then repeat: 971 / 225

Going ahead to step 4:
225 goes into 971 4 times with a remainder of 71.
The next digit of our result is 4. 
Result so far: 44.0
If we subtract 900 from 971, we get 71.
Grab the next digit (2) from the dividend, add it to 71, then carry on: 712 / 225

Moving on to step 5:
225 goes into 712 3 times with a remainder of 37.
The next digit of our result is 3. 
Result so far: 443.0
If we subtract 675 from 712, we get 37.
Fetch the next digit (4) from the dividend, attach it to 37 and continue: 374 / 225

Advancing to step 6:
If we divide 374 by 225, we get 1 and a remainder of 149.
The next digit of our result is 1. 
Result so far: 4431.0
Subtract 225 from 374 to get 149.
Fetch the next digit (3) from the dividend, attach it to 149 and continue: 1493 / 225

Going ahead to step 7:
If we divide 1493 by 225, we get 6 and a remainder of 143.
Put 6 as the next digit of the answer. 
Result so far: 44316.0
If we subtract 1350 from 1493, we get 143.
Append the next digit (8) from the dividend to 143 and continue with: 1438 / 225

Step 8:
225 goes into 1438 6 times with a remainder of 88.
Use 6 as the next digit of our solution. 
Result so far: 443166.0
If we subtract 1350 from 1438, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 9:
225 goes into 880 3 times with a remainder of 205.
Use 3 as the next digit of our solution. 
Result so far: 443166.3
The remainder is 205 after subtracting 675 from 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

On to step 10:
If we divide 2050 by 225, we get 9 and a remainder of 25.
The next digit of our result is 9. 
Result so far: 443166.39
Deduct 2025 from 2050 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 11:
The number 225 fits into 250 1 times, leaving a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 443166.391
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 12:
If we divide 250 by 225, we get 1 and a remainder of 25.
Put 1 as the next digit of the answer. 
Result so far: 443166.3911
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

In conclusion, the division gives 443166.3911 with a balance of 0.00025.