12086886 ÷ 225 
Let's see how many times 225 fits into 12086886.

Step 1:
If we divide 1 by 225, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 225

Moving on to step 2:
225 goes into 12 0 times with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (0) from the dividend to 12 and continue with: 120 / 225

Step 3:
When dividing 120 by 225, we get 0 with a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 120, we end up with 120.
Bring next digit (8) of the dividend behind the 120 and repeat the process: 1208 / 225

On to step 4:
If we divide 1208 by 225, we get 5 and a remainder of 83.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 1125 from 1208 leaves us with 83.
Append the next digit (6) from the dividend to 83 and continue with: 836 / 225

Going ahead to step 5:
When dividing 836 by 225, we get 3 with a remainder of 161.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
If we take 675 away from 836, we end up with 161.
Append the next digit (8) from the dividend to 161 and continue with: 1618 / 225

Moving on to step 6:
1618 divided by 225 is 7 with a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 537.0
If we subtract 1575 from 1618, we get 43.
Include the next digit (8) from the dividend after 43, then repeat: 438 / 225

Moving on to step 7:
225 can be fit into 438 1 times, resulting in a remainder of 213.
Put 1 as the next digit of the answer. 
Result so far: 5371.0
The remainder is 213 after subtracting 225 from 438.
Take the next digit (6) from the dividend and append it to 213, then repeat: 2136 / 225

Advancing to step 8:
If we divide 2136 by 225, we get 9 and a remainder of 111.
The next digit of our result is 9. 
Result so far: 53719.0
If we subtract 2025 from 2136, we get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Going ahead to step 9:
When dividing 1110 by 225, we get 4 with a remainder of 210.
Use 4 as the next digit of our solution. 
Result so far: 53719.4
The remainder is 210 after subtracting 900 from 1110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 10:
The number 225 fits into 2100 9 times, leaving a remainder of 75.
Use 9 as the next digit of our solution. 
Result so far: 53719.49
Subtract 2025 from 2100 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 11:
225 goes into 750 3 times with a remainder of 75.
The number 3 becomes the next digit in our result. 
Result so far: 53719.493
Subtracting 675 from 750 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 12:
If we divide 750 by 225, we get 3 and a remainder of 75.
Record the quotient 3 as the next digit in the result. 
Result so far: 53719.4933
Subtracting 675 from 750 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

The final result is 53719.4933 with a remainder of 0.00075.