63185717 ÷ 215 
We want to divide 63185717 by 215.

Moving on to step 1:
6 divided by 215 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 215

Step 2:
The number 215 fits into 63 0 times, leaving 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.
Bring next digit (1) of the dividend behind the 63 and repeat the process: 631 / 215

Let's proceed to step 3:
215 goes into 631 2 times with a remainder of 201.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 430 from 631 leaves us with 201.
Grab the next digit (8) from the dividend, add it to 201, then carry on: 2018 / 215

Moving on to step 4:
If we divide 2018 by 215, we get 9 and a remainder of 83.
Put 9 as the next digit of the answer. 
Result so far: 29.0
If we take 1935 away from 2018, we end up with 83.
Include the next digit (5) from the dividend after 83, then repeat: 835 / 215

Moving on to step 5:
215 can be fit into 835 3 times, resulting in a remainder of 190.
Write down 3 as next digit of the result. 
Result so far: 293.0
The remainder is 190 after subtracting 645 from 835.
Take the next digit (7) from the dividend and append it to 190, then repeat: 1907 / 215

Step 6:
The number 215 fits into 1907 8 times, leaving a remainder of 187.
Use 8 as the next digit of our solution. 
Result so far: 2938.0
If we subtract 1720 from 1907, we get 187.
Bring next digit (1) of the dividend behind the 187 and repeat the process: 1871 / 215

Advancing to step 7:
215 can be fit into 1871 8 times, resulting in a remainder of 151.
The number 8 becomes the next digit in our result. 
Result so far: 29388.0
Subtracting 1720 from 1871 leaves us with 151.
Bring next digit (7) of the dividend behind the 151 and repeat the process: 1517 / 215

Advancing to step 8:
215 goes into 1517 7 times with a remainder of 12.
Put 7 as the next digit of the answer. 
Result so far: 293887.0
If we take 1505 away from 1517, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
The number 215 fits into 120 0 times, leaving a remainder of 120.
The next digit of our result is 0. 
Result so far: 293887.0
Subtract 0 from 120 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 10:
When dividing 1200 by 215, we get 5 with a remainder of 125.
Put 5 as the next digit of the answer. 
Result so far: 293887.05
If we take 1075 away from 1200, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 11:
215 can be fit into 1250 5 times, resulting in a remainder of 175.
Write down 5 as next digit of the result. 
Result so far: 293887.055
Deduct 1075 from 1250 and we're left with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

The final outcome is 293887.055, with a leftover of 0.0175.