42088122 ÷ 317 
We want to figure out the number of times 42088122 can be divided by 317.

On to step 1:
If we divide 4 by 317, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 317

Advancing to step 2:
If we divide 42 by 317, we get 0 and a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Include the next digit (0) from the dividend after 42, then repeat: 420 / 317

On to step 3:
When dividing 420 by 317, we get 1 with a remainder of 103.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 317 from 420 leaves us with 103.
Append the next digit (8) from the dividend to 103 and continue with: 1038 / 317

Step 4:
The number 317 fits into 1038 3 times, leaving a remainder of 87.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 951 away from 1038, we end up with 87.
Include the next digit (8) from the dividend after 87, then repeat: 878 / 317

On to step 5:
878 divided by 317 is 2 with a remainder of 244.
The next digit of our result is 2. 
Result so far: 132.0
The remainder is 244 after subtracting 634 from 878.
Append the next digit (1) from the dividend to 244 and continue with: 2441 / 317

Going ahead to step 6:
When dividing 2441 by 317, we get 7 with a remainder of 222.
Write down 7 as next digit of the result. 
Result so far: 1327.0
Subtracting 2219 from 2441 leaves us with 222.
Grab the next digit (2) from the dividend, add it to 222, then carry on: 2222 / 317

On to step 7:
When dividing 2222 by 317, we get 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 13277.0
Subtract 2219 from 2222 to get 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 317

Moving on to step 8:
The number 317 fits into 32 0 times, leaving a remainder of 32.
The number 0 becomes the next digit in our result. 
Result so far: 132770.0
Subtract 0 from 32 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 9:
320 divided by 317 is 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 132770.1
Subtract 317 from 320 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 10:
When dividing 30 by 317, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 132770.1
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
317 can be fit into 300 0 times, resulting in a remainder of 300.
Put 0 as the next digit of the answer. 
Result so far: 132770.1
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final outcome is 132770.1, with a leftover of 0.03.