90209321 ÷ 252 
Let's see how many times 252 fits into 90209321.

On to step 1:
252 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 252

Moving on to step 2:
The number 252 fits into 90 0 times, leaving a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Grab the next digit (2) from the dividend, add it to 90, then carry on: 902 / 252

Moving on to step 3:
902 divided by 252 is 3 with a remainder of 146.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 756 from 902 and we're left with 146.
Bring next digit (0) of the dividend behind the 146 and repeat the process: 1460 / 252

Going ahead to step 4:
When dividing 1460 by 252, we get 5 with a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 35.0
The remainder is 200 after subtracting 1260 from 1460.
Bring next digit (9) of the dividend behind the 200 and repeat the process: 2009 / 252

Step 5:
252 goes into 2009 7 times with a remainder of 245.
Record the quotient 7 as the next digit in the result. 
Result so far: 357.0
If we subtract 1764 from 2009, we get 245.
Bring next digit (3) of the dividend behind the 245 and repeat the process: 2453 / 252

Going ahead to step 6:
252 goes into 2453 9 times with a remainder of 185.
Record the quotient 9 as the next digit in the result. 
Result so far: 3579.0
The remainder is 185 after subtracting 2268 from 2453.
Take the next digit (2) from the dividend and append it to 185, then repeat: 1852 / 252

Let's proceed to step 7:
252 goes into 1852 7 times with a remainder of 88.
Use 7 as the next digit of our solution. 
Result so far: 35797.0
If we take 1764 away from 1852, we end up with 88.
Include the next digit (1) from the dividend after 88, then repeat: 881 / 252

Let's proceed to step 8:
252 goes into 881 3 times with a remainder of 125.
The next digit of our result is 3. 
Result so far: 357973.0
Subtract 756 from 881 to get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 9:
252 can be fit into 1250 4 times, resulting in a remainder of 242.
Record the quotient 4 as the next digit in the result. 
Result so far: 357973.4
Deduct 1008 from 1250 and we're left with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Advancing to step 10:
The number 252 fits into 2420 9 times, leaving a remainder of 152.
Put 9 as the next digit of the answer. 
Result so far: 357973.49
Deduct 2268 from 2420 and we're left with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 11:
252 can be fit into 1520 6 times, resulting in a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 357973.496
Subtract 1512 from 1520 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 12:
When dividing 80 by 252, we get 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 357973.496
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 13:
If we divide 800 by 252, we get 3 and a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 357973.49603
If we subtract 756 from 800, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 14:
The number 252 fits into 440 1 times, leaving a remainder of 188.
The number 1 becomes the next digit in our result. 
Result so far: 357973.496031
The remainder is 188 after subtracting 252 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Moving on to step 15:
1880 divided by 252 is 7 with a remainder of 116.
The next digit of our result is 7. 
Result so far: 357973.4960317
If we take 1764 away from 1880, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 16:
When dividing 1160 by 252, we get 4 with a remainder of 152.
The next digit of our result is 4. 
Result so far: 357973.49603174
If we take 1008 away from 1160, we end up with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

The final result is 357973.49603174 with a remainder of 1.52e-07.