We look at the division of 53486850 by 225 
We want to figure out the number of times 53486850 can be divided by 225.

Going ahead to step 1:
225 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 225

Going ahead to step 2:
53 divided by 225 is 0 with a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Include the next digit (4) from the dividend after 53, then repeat: 534 / 225

Advancing to step 3:
225 can be fit into 534 2 times, resulting in a remainder of 84.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 450 away from 534, we end up with 84.
Bring next digit (8) of the dividend behind the 84 and repeat the process: 848 / 225

On to step 4:
225 goes into 848 3 times with a remainder of 173.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we take 675 away from 848, we end up with 173.
Fetch the next digit (6) from the dividend, attach it to 173 and continue: 1736 / 225

On to step 5:
The number 225 fits into 1736 7 times, leaving a remainder of 161.
Put 7 as the next digit of the answer. 
Result so far: 237.0
Subtract 1575 from 1736 to get 161.
Grab the next digit (8) from the dividend, add it to 161, then carry on: 1618 / 225

Moving on to step 6:
If we divide 1618 by 225, we get 7 and a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 2377.0
The remainder is 43 after subtracting 1575 from 1618.
Append the next digit (5) from the dividend to 43 and continue with: 435 / 225

On to step 7:
If we divide 435 by 225, we get 1 and a remainder of 210.
Record the quotient 1 as the next digit in the result. 
Result so far: 23771.0
Subtracting 225 from 435 leaves us with 210.
Grab the next digit (0) from the dividend, add it to 210, then carry on: 2100 / 225

Going ahead to step 8:
2100 divided by 225 is 9 with a remainder of 75.
Write down 9 as next digit of the result. 
Result so far: 237719.0
If we subtract 2025 from 2100, we 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 9:
225 can be fit into 750 3 times, resulting in a remainder of 75.
Use 3 as the next digit of our solution. 
Result so far: 237719.3
If we take 675 away from 750, we end up 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.

Step 10:
750 divided by 225 is 3 with a remainder of 75.
The next digit of our result is 3. 
Result so far: 237719.33
If we subtract 675 from 750, we 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.

Our division results in 237719.33 with a remaining 0.075.