We're dividing 42639757 by 634 
Let's see how many times 634 fits into 42639757.

Step 1:
If we divide 4 by 634, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 634

Let's proceed to step 2:
42 divided by 634 is 0 with a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Grab the next digit (6) from the dividend, add it to 42, then carry on: 426 / 634

Going ahead to step 3:
If we divide 426 by 634, we get 0 and a remainder of 426.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 426 leaves us with 426.
Include the next digit (3) from the dividend after 426, then repeat: 4263 / 634

Going ahead to step 4:
634 can be fit into 4263 6 times, resulting in a remainder of 459.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 3804 from 4263, we get 459.
Take the next digit (9) from the dividend and append it to 459, then repeat: 4599 / 634

Step 5:
When dividing 4599 by 634, we get 7 with a remainder of 161.
Record the quotient 7 as the next digit in the result. 
Result so far: 67.0
Subtract 4438 from 4599 to get 161.
Append the next digit (7) from the dividend to 161 and continue with: 1617 / 634

On to step 6:
When dividing 1617 by 634, we get 2 with a remainder of 349.
Put 2 as the next digit of the answer. 
Result so far: 672.0
If we take 1268 away from 1617, we end up with 349.
Append the next digit (5) from the dividend to 349 and continue with: 3495 / 634

Step 7:
When dividing 3495 by 634, we get 5 with a remainder of 325.
Record the quotient 5 as the next digit in the result. 
Result so far: 6725.0
Deduct 3170 from 3495 and we're left with 325.
Include the next digit (7) from the dividend after 325, then repeat: 3257 / 634

Advancing to step 8:
634 goes into 3257 5 times with a remainder of 87.
Record the quotient 5 as the next digit in the result. 
Result so far: 67255.0
The remainder is 87 after subtracting 3170 from 3257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Advancing to step 9:
634 goes into 870 1 times with a remainder of 236.
Use 1 as the next digit of our solution. 
Result so far: 67255.1
Deduct 634 from 870 and we're left with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Let's proceed to step 10:
When dividing 2360 by 634, we get 3 with a remainder of 458.
The number 3 becomes the next digit in our result. 
Result so far: 67255.13
Subtract 1902 from 2360 to get 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Moving on to step 11:
634 can be fit into 4580 7 times, resulting in a remainder of 142.
Record the quotient 7 as the next digit in the result. 
Result so far: 67255.137
Subtract 4438 from 4580 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

On to step 12:
1420 divided by 634 is 2 with a remainder of 152.
Put 2 as the next digit of the answer. 
Result so far: 67255.1372
Subtracting 1268 from 1420 leaves us with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Going ahead to step 13:
634 goes into 1520 2 times with a remainder of 252.
The next digit of our result is 2. 
Result so far: 67255.13722
Subtract 1268 from 1520 to get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Our division results in 67255.13722 with a remaining 0.000252.