We're dividing 63903231 by 318 
We want to figure out the number of times 63903231 can be divided by 318.

Advancing to step 1:
The number 318 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 318

Let's proceed to step 2:
The number 318 fits into 63 0 times, leaving a remainder of 63.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Include the next digit (9) from the dividend after 63, then repeat: 639 / 318

Let's proceed to step 3:
When dividing 639 by 318, we get 2 with a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 636 away from 639, we end up with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 318

Let's proceed to step 4:
The number 318 fits into 30 0 times, leaving a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 20.0
Deduct 0 from 30 and we're left with 30.
Include the next digit (3) from the dividend after 30, then repeat: 303 / 318

Going ahead to step 5:
When dividing 303 by 318, we get 0 with a remainder of 303.
Put 0 as the next digit of the answer. 
Result so far: 200.0
Subtracting 0 from 303 leaves us with 303.
Take the next digit (2) from the dividend and append it to 303, then repeat: 3032 / 318

Advancing to step 6:
3032 divided by 318 is 9 with a remainder of 170.
Put 9 as the next digit of the answer. 
Result so far: 2009.0
If we subtract 2862 from 3032, we get 170.
Include the next digit (3) from the dividend after 170, then repeat: 1703 / 318

Going ahead to step 7:
The number 318 fits into 1703 5 times, leaving a remainder of 113.
Use 5 as the next digit of our solution. 
Result so far: 20095.0
If we take 1590 away from 1703, we end up with 113.
Grab the next digit (1) from the dividend, add it to 113, then carry on: 1131 / 318

Let's proceed to step 8:
318 can be fit into 1131 3 times, resulting in a remainder of 177.
Put 3 as the next digit of the answer. 
Result so far: 200953.0
Subtracting 954 from 1131 leaves us with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Let's proceed to step 9:
If we divide 1770 by 318, we get 5 and a remainder of 180.
The next digit of our result is 5. 
Result so far: 200953.5
Deduct 1590 from 1770 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Advancing to step 10:
When dividing 1800 by 318, we get 5 with a remainder of 210.
Record the quotient 5 as the next digit in the result. 
Result so far: 200953.55
Deduct 1590 from 1800 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The final result is 200953.55 with a remainder of 0.21.