We're dividing 42501270 by 336 
Our goal is to divide 42501270 by 336.

On to step 1:
When dividing 4 by 336, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 336

Going ahead to step 2:
336 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 336

Step 3:
The number 336 fits into 425 1 times, leaving a remainder of 89.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 336 away from 425, we end up with 89.
Grab the next digit (0) from the dividend, add it to 89, then carry on: 890 / 336

Let's proceed to step 4:
If we divide 890 by 336, we get 2 and a remainder of 218.
The next digit of our result is 2. 
Result so far: 12.0
If we take 672 away from 890, we end up with 218.
Fetch the next digit (1) from the dividend, attach it to 218 and continue: 2181 / 336

Step 5:
When dividing 2181 by 336, we get 6 with a remainder of 165.
The next digit of our result is 6. 
Result so far: 126.0
If we subtract 2016 from 2181, we get 165.
Grab the next digit (2) from the dividend, add it to 165, then carry on: 1652 / 336

Let's proceed to step 6:
336 goes into 1652 4 times with a remainder of 308.
Record the quotient 4 as the next digit in the result. 
Result so far: 1264.0
Deduct 1344 from 1652 and we're left with 308.
Include the next digit (7) from the dividend after 308, then repeat: 3087 / 336

Let's proceed to step 7:
336 goes into 3087 9 times with a remainder of 63.
Use 9 as the next digit of our solution. 
Result so far: 12649.0
The remainder is 63 after subtracting 3024 from 3087.
Take the next digit (0) from the dividend and append it to 63, then repeat: 630 / 336

Moving on to step 8:
The number 336 fits into 630 1 times, leaving a remainder of 294.
The number 1 becomes the next digit in our result. 
Result so far: 126491.0
Subtracting 336 from 630 leaves us with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

On to step 9:
When dividing 2940 by 336, we get 8 with a remainder of 252.
Write down 8 as next digit of the result. 
Result so far: 126491.8
Deduct 2688 from 2940 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

On to step 10:
If we divide 2520 by 336, we get 7 and a remainder of 168.
The number 7 becomes the next digit in our result. 
Result so far: 126491.87
The remainder is 168 after subtracting 2352 from 2520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 11:
336 can be fit into 1680 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 126491.875
The remainder is 0 after subtracting 1680 from 1680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 12:
If we divide 0 by 336, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 126491.875
If we subtract 0 from 0, 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.

Step 13:
0 divided by 336 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 126491.875
Subtract 0 from 0 to 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.

After the division, we end up with 126491.875 and a remainder of 0.0.