63621935 ÷ 900 
Our goal is to divide 63621935 by 900.

Let's proceed to step 1:
If we divide 6 by 900, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 900

Step 2:
900 can be fit into 63 0 times, resulting in a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 63 leaves us with 63.
Include the next digit (6) from the dividend after 63, then repeat: 636 / 900

On to step 3:
900 goes into 636 0 times with a remainder of 636.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 636 and we're left with 636.
Fetch the next digit (2) from the dividend, attach it to 636 and continue: 6362 / 900

Let's proceed to step 4:
6362 divided by 900 is 7 with a remainder of 62.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 6300 from 6362 to get 62.
Include the next digit (1) from the dividend after 62, then repeat: 621 / 900

Moving on to step 5:
When dividing 621 by 900, we get 0 with a remainder of 621.
The number 0 becomes the next digit in our result. 
Result so far: 70.0
Subtract 0 from 621 to get 621.
Append the next digit (9) from the dividend to 621 and continue with: 6219 / 900

Going ahead to step 6:
When dividing 6219 by 900, we get 6 with a remainder of 819.
The next digit of our result is 6. 
Result so far: 706.0
Subtracting 5400 from 6219 leaves us with 819.
Grab the next digit (3) from the dividend, add it to 819, then carry on: 8193 / 900

Step 7:
The number 900 fits into 8193 9 times, leaving a remainder of 93.
Put 9 as the next digit of the answer. 
Result so far: 7069.0
Subtracting 8100 from 8193 leaves us with 93.
Bring next digit (5) of the dividend behind the 93 and repeat the process: 935 / 900

Let's proceed to step 8:
If we divide 935 by 900, we get 1 and a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 70691.0
Deduct 900 from 935 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 9:
900 can be fit into 350 0 times, resulting in a remainder of 350.
Put 0 as the next digit of the answer. 
Result so far: 70691.0
Deduct 0 from 350 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

On to step 10:
If we divide 3500 by 900, we get 3 and a remainder of 800.
Record the quotient 3 as the next digit in the result. 
Result so far: 70691.03
Subtracting 2700 from 3500 leaves us with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Going ahead to step 11:
The number 900 fits into 8000 8 times, leaving a remainder of 800.
The number 8 becomes the next digit in our result. 
Result so far: 70691.038
Deduct 7200 from 8000 and we're left with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Let's proceed to step 12:
900 can be fit into 8000 8 times, resulting in a remainder of 800.
Use 8 as the next digit of our solution. 
Result so far: 70691.0388
If we take 7200 away from 8000, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

The final result is 70691.0388 with a remainder of 0.008.