We look at the division of 63904383 by 215 
We want to figure out the number of times 63904383 can be divided by 215.

Advancing to step 1:
The number 215 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 215

Step 2:
If we divide 63 by 215, we get 0 and a remainder of 63.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 215

Step 3:
If we divide 639 by 215, we get 2 and a remainder of 209.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 430 from 639 leaves us with 209.
Take the next digit (0) from the dividend and append it to 209, then repeat: 2090 / 215

Step 4:
215 goes into 2090 9 times with a remainder of 155.
Use 9 as the next digit of our solution. 
Result so far: 29.0
Subtract 1935 from 2090 to get 155.
Include the next digit (4) from the dividend after 155, then repeat: 1554 / 215

On to step 5:
215 goes into 1554 7 times with a remainder of 49.
Use 7 as the next digit of our solution. 
Result so far: 297.0
If we subtract 1505 from 1554, we get 49.
Grab the next digit (3) from the dividend, add it to 49, then carry on: 493 / 215

On to step 6:
If we divide 493 by 215, we get 2 and a remainder of 63.
The next digit of our result is 2. 
Result so far: 2972.0
If we take 430 away from 493, we end up with 63.
Append the next digit (8) from the dividend to 63 and continue with: 638 / 215

On to step 7:
215 can be fit into 638 2 times, resulting in a remainder of 208.
Write down 2 as next digit of the result. 
Result so far: 29722.0
The remainder is 208 after subtracting 430 from 638.
Take the next digit (3) from the dividend and append it to 208, then repeat: 2083 / 215

On to step 8:
The number 215 fits into 2083 9 times, leaving a remainder of 148.
The next digit of our result is 9. 
Result so far: 297229.0
Subtracting 1935 from 2083 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Step 9:
When dividing 1480 by 215, we get 6 with a remainder of 190.
Record the quotient 6 as the next digit in the result. 
Result so far: 297229.6
If we take 1290 away from 1480, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 10:
When dividing 1900 by 215, we get 8 with a remainder of 180.
Use 8 as the next digit of our solution. 
Result so far: 297229.68
Subtract 1720 from 1900 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 11:
215 can be fit into 1800 8 times, resulting in a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 297229.688
Subtracting 1720 from 1800 leaves us 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.

Our division results in 297229.688 with a remaining 0.008.