We're dividing 42507140 by 126 
Let's see how many times 126 fits into 42507140.

Moving on to step 1:
When dividing 4 by 126, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 126

On to step 2:
When dividing 42 by 126, we get 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.
Include the next digit (5) from the dividend after 42, then repeat: 425 / 126

Advancing to step 3:
If we divide 425 by 126, we get 3 and a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 378 from 425 and we're left with 47.
Append the next digit (0) from the dividend to 47 and continue with: 470 / 126

Step 4:
The number 126 fits into 470 3 times, leaving a remainder of 92.
Record the quotient 3 as the next digit in the result. 
Result so far: 33.0
If we subtract 378 from 470, we get 92.
Bring next digit (7) of the dividend behind the 92 and repeat the process: 927 / 126

Step 5:
126 can be fit into 927 7 times, resulting in a remainder of 45.
The number 7 becomes the next digit in our result. 
Result so far: 337.0
If we subtract 882 from 927, we get 45.
Take the next digit (1) from the dividend and append it to 45, then repeat: 451 / 126

Moving on to step 6:
451 divided by 126 is 3 with a remainder of 73.
Record the quotient 3 as the next digit in the result. 
Result so far: 3373.0
Deduct 378 from 451 and we're left with 73.
Bring next digit (4) of the dividend behind the 73 and repeat the process: 734 / 126

Let's proceed to step 7:
The number 126 fits into 734 5 times, leaving a remainder of 104.
The next digit of our result is 5. 
Result so far: 33735.0
If we take 630 away from 734, we end up with 104.
Append the next digit (0) from the dividend to 104 and continue with: 1040 / 126

Let's proceed to step 8:
When dividing 1040 by 126, we get 8 with a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 337358.0
If we take 1008 away from 1040, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 9:
If we divide 320 by 126, we get 2 and a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 337358.2
Subtracting 252 from 320 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 10:
If we divide 680 by 126, we get 5 and a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 337358.25
Deduct 630 from 680 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
The number 126 fits into 500 3 times, leaving a remainder of 122.
Use 3 as the next digit of our solution. 
Result so far: 337358.253
If we subtract 378 from 500, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Advancing to step 12:
When dividing 1220 by 126, we get 9 with a remainder of 86.
Put 9 as the next digit of the answer. 
Result so far: 337358.2539
If we take 1134 away from 1220, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 13:
If we divide 860 by 126, we get 6 and a remainder of 104.
Use 6 as the next digit of our solution. 
Result so far: 337358.25396
Subtracting 756 from 860 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.

Let's proceed to step 14:
126 can be fit into 1040 8 times, resulting in a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 337358.253968
If we take 1008 away from 1040, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 15:
If we divide 320 by 126, we get 2 and a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 337358.2539682
If we subtract 252 from 320, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 16:
When dividing 680 by 126, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 337358.25396825
If we take 630 away from 680, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 337358.25396825, with a leftover of 5e-08.