We're dividing 42742905 by 300 
We want to figure out the number of times 42742905 can be divided by 300.

On to step 1:
If we divide 4 by 300, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 300

Let's proceed to step 2:
The number 300 fits into 42 0 times, leaving a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (7) from the dividend, add it to 42, then carry on: 427 / 300

On to step 3:
300 can be fit into 427 1 times, resulting in a remainder of 127.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 300 away from 427, we end up with 127.
Fetch the next digit (4) from the dividend, attach it to 127 and continue: 1274 / 300

On to step 4:
The number 300 fits into 1274 4 times, leaving a remainder of 74.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 1200 from 1274 and we're left with 74.
Bring next digit (2) of the dividend behind the 74 and repeat the process: 742 / 300

Going ahead to step 5:
300 can be fit into 742 2 times, resulting in a remainder of 142.
Put 2 as the next digit of the answer. 
Result so far: 142.0
Deduct 600 from 742 and we're left with 142.
Fetch the next digit (9) from the dividend, attach it to 142 and continue: 1429 / 300

Advancing to step 6:
300 can be fit into 1429 4 times, resulting in a remainder of 229.
The number 4 becomes the next digit in our result. 
Result so far: 1424.0
Subtract 1200 from 1429 to get 229.
Fetch the next digit (0) from the dividend, attach it to 229 and continue: 2290 / 300

Step 7:
2290 divided by 300 is 7 with a remainder of 190.
The next digit of our result is 7. 
Result so far: 14247.0
The remainder is 190 after subtracting 2100 from 2290.
Take the next digit (5) from the dividend and append it to 190, then repeat: 1905 / 300

Going ahead to step 8:
300 can be fit into 1905 6 times, resulting in a remainder of 105.
The next digit of our result is 6. 
Result so far: 142476.0
Subtracting 1800 from 1905 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

On to step 9:
300 goes into 1050 3 times with a remainder of 150.
Record the quotient 3 as the next digit in the result. 
Result so far: 142476.3
Deduct 900 from 1050 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 10:
1500 divided by 300 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 142476.35
If we subtract 1500 from 1500, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
If we divide 0 by 300, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 142476.35
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 12:
If we divide 0 by 300, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 142476.35
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 142476.35, with a leftover of 0.0.