42400030 ÷ 142 
Let's see how many times 142 fits into 42400030.

On to step 1:
If we divide 4 by 142, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 142

Let's proceed to step 2:
142 goes into 42 0 times with 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 (4) from the dividend after 42, then repeat: 424 / 142

Advancing to step 3:
142 can be fit into 424 2 times, resulting in a remainder of 140.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 140 after subtracting 284 from 424.
Append the next digit (0) from the dividend to 140 and continue with: 1400 / 142

Moving on to step 4:
142 goes into 1400 9 times with a remainder of 122.
Write down 9 as next digit of the result. 
Result so far: 29.0
If we subtract 1278 from 1400, we get 122.
Bring next digit (0) of the dividend behind the 122 and repeat the process: 1220 / 142

Moving on to step 5:
When dividing 1220 by 142, we get 8 with a remainder of 84.
The number 8 becomes the next digit in our result. 
Result so far: 298.0
If we take 1136 away from 1220, we end up with 84.
Append the next digit (0) from the dividend to 84 and continue with: 840 / 142

Let's proceed to step 6:
142 goes into 840 5 times with a remainder of 130.
The next digit of our result is 5. 
Result so far: 2985.0
If we subtract 710 from 840, we get 130.
Include the next digit (3) from the dividend after 130, then repeat: 1303 / 142

Going ahead to step 7:
When dividing 1303 by 142, we get 9 with a remainder of 25.
The next digit of our result is 9. 
Result so far: 29859.0
Subtracting 1278 from 1303 leaves us with 25.
Grab the next digit (0) from the dividend, add it to 25, then carry on: 250 / 142

Step 8:
When dividing 250 by 142, we get 1 with a remainder of 108.
Use 1 as the next digit of our solution. 
Result so far: 298591.0
Subtract 142 from 250 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 9:
The number 142 fits into 1080 7 times, leaving a remainder of 86.
Record the quotient 7 as the next digit in the result. 
Result so far: 298591.7
Subtract 994 from 1080 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 10:
860 divided by 142 is 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 298591.76
The remainder is 8 after subtracting 852 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 11:
The number 142 fits into 80 0 times, leaving a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 298591.76
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 12:
The number 142 fits into 800 5 times, leaving a remainder of 90.
The number 5 becomes the next digit in our result. 
Result so far: 298591.7605
If we subtract 710 from 800, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 13:
If we divide 900 by 142, we get 6 and a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 298591.76056
If we take 852 away from 900, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 14:
The number 142 fits into 480 3 times, leaving a remainder of 54.
Put 3 as the next digit of the answer. 
Result so far: 298591.760563
Subtracting 426 from 480 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 15:
142 can be fit into 540 3 times, resulting in a remainder of 114.
Record the quotient 3 as the next digit in the result. 
Result so far: 298591.7605633
Subtract 426 from 540 to get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

After the division, we end up with 298591.7605633 and a remainder of 1.14e-06.