39939377 ÷ 225 
We want to divide 39939377 by 225.

On to step 1:
When dividing 3 by 225, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 225

Going ahead to step 2:
If we divide 39 by 225, we get 0 and a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Take the next digit (9) from the dividend and append it to 39, then repeat: 399 / 225

Let's proceed to step 3:
When dividing 399 by 225, we get 1 with a remainder of 174.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 225 from 399, we get 174.
Bring next digit (3) of the dividend behind the 174 and repeat the process: 1743 / 225

Let's proceed to step 4:
225 goes into 1743 7 times with a remainder of 168.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtracting 1575 from 1743 leaves us with 168.
Bring next digit (9) of the dividend behind the 168 and repeat the process: 1689 / 225

Step 5:
The number 225 fits into 1689 7 times, leaving a remainder of 114.
Write down 7 as next digit of the result. 
Result so far: 177.0
Deduct 1575 from 1689 and we're left with 114.
Grab the next digit (3) from the dividend, add it to 114, then carry on: 1143 / 225

Step 6:
225 goes into 1143 5 times with a remainder of 18.
Put 5 as the next digit of the answer. 
Result so far: 1775.0
If we take 1125 away from 1143, we end up with 18.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 225

On to step 7:
225 can be fit into 187 0 times, resulting in a remainder of 187.
Use 0 as the next digit of our solution. 
Result so far: 17750.0
If we take 0 away from 187, we end up with 187.
Bring next digit (7) of the dividend behind the 187 and repeat the process: 1877 / 225

On to step 8:
225 can be fit into 1877 8 times, resulting in a remainder of 77.
Put 8 as the next digit of the answer. 
Result so far: 177508.0
Subtract 1800 from 1877 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 9:
The number 225 fits into 770 3 times, leaving a remainder of 95.
The next digit of our result is 3. 
Result so far: 177508.3
If we take 675 away from 770, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Advancing to step 10:
When dividing 950 by 225, we get 4 with a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 177508.34
If we take 900 away from 950, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 11:
225 can be fit into 500 2 times, resulting in a remainder of 50.
Record the quotient 2 as the next digit in the result. 
Result so far: 177508.342
Subtract 450 from 500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 12:
225 goes into 500 2 times with a remainder of 50.
The number 2 becomes the next digit in our result. 
Result so far: 177508.3422
Subtract 450 from 500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 177508.3422 with a remainder of 0.0005.