We look at the division of 42125136 by 316 
Let's see how many times 316 fits into 42125136.

Going ahead to step 1:
316 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 316

Advancing to step 2:
When dividing 42 by 316, we get 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Bring next digit (1) of the dividend behind the 42 and repeat the process: 421 / 316

Let's proceed to step 3:
The number 316 fits into 421 1 times, leaving a remainder of 105.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 316 from 421 leaves us with 105.
Grab the next digit (2) from the dividend, add it to 105, then carry on: 1052 / 316

Step 4:
The number 316 fits into 1052 3 times, leaving a remainder of 104.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Deduct 948 from 1052 and we're left with 104.
Append the next digit (5) from the dividend to 104 and continue with: 1045 / 316

Going ahead to step 5:
1045 divided by 316 is 3 with a remainder of 97.
Put 3 as the next digit of the answer. 
Result so far: 133.0
Deduct 948 from 1045 and we're left with 97.
Include the next digit (1) from the dividend after 97, then repeat: 971 / 316

Let's proceed to step 6:
971 divided by 316 is 3 with a remainder of 23.
Use 3 as the next digit of our solution. 
Result so far: 1333.0
The remainder is 23 after subtracting 948 from 971.
Fetch the next digit (3) from the dividend, attach it to 23 and continue: 233 / 316

Moving on to step 7:
The number 316 fits into 233 0 times, leaving a remainder of 233.
The number 0 becomes the next digit in our result. 
Result so far: 13330.0
The remainder is 233 after subtracting 0 from 233.
Bring next digit (6) of the dividend behind the 233 and repeat the process: 2336 / 316

Moving on to step 8:
2336 divided by 316 is 7 with a remainder of 124.
Write down 7 as next digit of the result. 
Result so far: 133307.0
If we take 2212 away from 2336, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 9:
The number 316 fits into 1240 3 times, leaving a remainder of 292.
Record the quotient 3 as the next digit in the result. 
Result so far: 133307.3
Deduct 948 from 1240 and we're left with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Step 10:
316 goes into 2920 9 times with a remainder of 76.
Record the quotient 9 as the next digit in the result. 
Result so far: 133307.39
The remainder is 76 after subtracting 2844 from 2920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 11:
316 goes into 760 2 times with a remainder of 128.
Record the quotient 2 as the next digit in the result. 
Result so far: 133307.392
Subtract 632 from 760 to get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 12:
1280 divided by 316 is 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 133307.3924
If we take 1264 away from 1280, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
The number 316 fits into 160 0 times, leaving a remainder of 160.
Record the quotient 0 as the next digit in the result. 
Result so far: 133307.3924
If we take 0 away from 160, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 14:
When dividing 1600 by 316, we get 5 with a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 133307.392405
The remainder is 20 after subtracting 1580 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 15:
The number 316 fits into 200 0 times, leaving a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 133307.392405
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 16:
The number 316 fits into 2000 6 times, leaving a remainder of 104.
Record the quotient 6 as the next digit in the result. 
Result so far: 133307.39240506
Subtracting 1896 from 2000 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

In conclusion, the division gives 133307.39240506 with a balance of 1.04e-07.