We divide 10387275 by 225
We want to figure out the number of times 10387275 can be divided by 225.

Going ahead to step 1:
If we divide 1 by 225, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 225

On to step 2:
225 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 225

Advancing to step 3:
When dividing 103 by 225, we get 0 with a remainder of 103.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 103 to get 103.
Append the next digit (8) from the dividend to 103 and continue with: 1038 / 225

Moving on to step 4:
225 goes into 1038 4 times with a remainder of 138.
The next digit of our result is 4. 
Result so far: 4.0
If we take 900 away from 1038, we end up with 138.
Take the next digit (7) from the dividend and append it to 138, then repeat: 1387 / 225

Going ahead to step 5:
The number 225 fits into 1387 6 times, leaving a remainder of 37.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
Deduct 1350 from 1387 and we're left with 37.
Take the next digit (2) from the dividend and append it to 37, then repeat: 372 / 225

Step 6:
The number 225 fits into 372 1 times, leaving a remainder of 147.
Record the quotient 1 as the next digit in the result. 
Result so far: 461.0
Subtracting 225 from 372 leaves us with 147.
Append the next digit (7) from the dividend to 147 and continue with: 1477 / 225

Step 7:
If we divide 1477 by 225, we get 6 and a remainder of 127.
Record the quotient 6 as the next digit in the result. 
Result so far: 4616.0
Subtract 1350 from 1477 to get 127.
Append the next digit (5) from the dividend to 127 and continue with: 1275 / 225

Let's proceed to step 8:
When dividing 1275 by 225, we get 5 with a remainder of 150.
The next digit of our result is 5. 
Result so far: 46165.0
Subtract 1125 from 1275 to 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.

Advancing to step 9:
225 goes into 1500 6 times with a remainder of 150.
Put 6 as the next digit of the answer. 
Result so far: 46165.6
Deduct 1350 from 1500 and we're left 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.

Step 10:
The number 225 fits into 1500 6 times, leaving a remainder of 150.
The number 6 becomes the next digit in our result. 
Result so far: 46165.66
Subtract 1350 from 1500 to 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.

After the division, we end up with 46165.66 and a remainder of 0.15.