We're dividing 42591910 by 270 
We want to figure out the number of times 42591910 can be divided by 270.

Going ahead to step 1:
When dividing 4 by 270, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 270

On to step 2:
42 divided by 270 is 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Fetch the next digit (5) from the dividend, attach it to 42 and continue: 425 / 270

Let's proceed to step 3:
When dividing 425 by 270, we get 1 with a remainder of 155.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 270 from 425 and we're left with 155.
Take the next digit (9) from the dividend and append it to 155, then repeat: 1559 / 270

Moving on to step 4:
1559 divided by 270 is 5 with a remainder of 209.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtracting 1350 from 1559 leaves us with 209.
Bring next digit (1) of the dividend behind the 209 and repeat the process: 2091 / 270

Step 5:
If we divide 2091 by 270, we get 7 and a remainder of 201.
The next digit of our result is 7. 
Result so far: 157.0
Subtracting 1890 from 2091 leaves us with 201.
Take the next digit (9) from the dividend and append it to 201, then repeat: 2019 / 270

Going ahead to step 6:
2019 divided by 270 is 7 with a remainder of 129.
The number 7 becomes the next digit in our result. 
Result so far: 1577.0
If we subtract 1890 from 2019, we get 129.
Bring next digit (1) of the dividend behind the 129 and repeat the process: 1291 / 270

Going ahead to step 7:
The number 270 fits into 1291 4 times, leaving a remainder of 211.
The number 4 becomes the next digit in our result. 
Result so far: 15774.0
The remainder is 211 after subtracting 1080 from 1291.
Include the next digit (0) from the dividend after 211, then repeat: 2110 / 270

Step 8:
When dividing 2110 by 270, we get 7 with a remainder of 220.
The number 7 becomes the next digit in our result. 
Result so far: 157747.0
If we subtract 1890 from 2110, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 9:
2200 divided by 270 is 8 with a remainder of 40.
The next digit of our result is 8. 
Result so far: 157747.8
If we take 2160 away from 2200, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
270 can be fit into 400 1 times, resulting in a remainder of 130.
Use 1 as the next digit of our solution. 
Result so far: 157747.81
The remainder is 130 after subtracting 270 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 11:
270 can be fit into 1300 4 times, resulting in a remainder of 220.
Use 4 as the next digit of our solution. 
Result so far: 157747.814
If we subtract 1080 from 1300, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 12:
The number 270 fits into 2200 8 times, leaving a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 157747.8148
The remainder is 40 after subtracting 2160 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 13:
The number 270 fits into 400 1 times, leaving a remainder of 130.
Write down 1 as next digit of the result. 
Result so far: 157747.81481
Subtracting 270 from 400 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 14:
1300 divided by 270 is 4 with a remainder of 220.
Record the quotient 4 as the next digit in the result. 
Result so far: 157747.814814
Deduct 1080 from 1300 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 15:
270 can be fit into 2200 8 times, resulting in a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 157747.8148148
Subtract 2160 from 2200 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 16:
270 can be fit into 400 1 times, resulting in a remainder of 130.
Write down 1 as next digit of the result. 
Result so far: 157747.81481481
Subtract 270 from 400 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

The final outcome is 157747.81481481, with a leftover of 1.3e-07.