636363 ÷ 42 
We're looking to find how many times 42 goes into 636363.

Going ahead to step 1:
The number 42 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
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 / 42

Moving on to step 2:
42 can be fit into 63 1 times, resulting in a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 42 from 63 and we're left with 21.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 42

Going ahead to step 3:
If we divide 216 by 42, we get 5 and a remainder of 6.
The next digit of our result is 5. 
Result so far: 15.0
Subtract 210 from 216 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 42

Advancing to step 4:
If we divide 63 by 42, we get 1 and a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 151.0
The remainder is 21 after subtracting 42 from 63.
Grab the next digit (6) from the dividend, add it to 21, then carry on: 216 / 42

On to step 5:
216 divided by 42 is 5 with a remainder of 6.
Record the quotient 5 as the next digit in the result. 
Result so far: 1515.0
Subtract 210 from 216 to get 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 42

Moving on to step 6:
When dividing 63 by 42, we get 1 with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 15151.0
The remainder is 21 after subtracting 42 from 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 7:
42 can be fit into 210 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 15151.5
If we subtract 210 from 210, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
42 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 15151.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
0 divided by 42 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15151.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 15151.5 with a balance of 0.0.