We look at the division of 42133830 by 170 
Let's see how many times 170 fits into 42133830.

Let's proceed to step 1:
170 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 170

Step 2:
42 divided by 170 is 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Append the next digit (1) from the dividend to 42 and continue with: 421 / 170

Step 3:
When dividing 421 by 170, we get 2 with a remainder of 81.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 81 after subtracting 340 from 421.
Bring next digit (3) of the dividend behind the 81 and repeat the process: 813 / 170

Moving on to step 4:
If we divide 813 by 170, we get 4 and a remainder of 133.
The next digit of our result is 4. 
Result so far: 24.0
Subtracting 680 from 813 leaves us with 133.
Fetch the next digit (3) from the dividend, attach it to 133 and continue: 1333 / 170

Let's proceed to step 5:
170 goes into 1333 7 times with a remainder of 143.
Put 7 as the next digit of the answer. 
Result so far: 247.0
If we take 1190 away from 1333, we end up with 143.
Bring next digit (8) of the dividend behind the 143 and repeat the process: 1438 / 170

Let's proceed to step 6:
1438 divided by 170 is 8 with a remainder of 78.
Put 8 as the next digit of the answer. 
Result so far: 2478.0
Subtracting 1360 from 1438 leaves us with 78.
Fetch the next digit (3) from the dividend, attach it to 78 and continue: 783 / 170

Step 7:
783 divided by 170 is 4 with a remainder of 103.
The next digit of our result is 4. 
Result so far: 24784.0
If we subtract 680 from 783, we get 103.
Grab the next digit (0) from the dividend, add it to 103, then carry on: 1030 / 170

Advancing to step 8:
170 can be fit into 1030 6 times, resulting in a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 247846.0
The remainder is 10 after subtracting 1020 from 1030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
100 divided by 170 is 0 with a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 247846.0
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Advancing to step 10:
If we divide 1000 by 170, we get 5 and a remainder of 150.
The next digit of our result is 5. 
Result so far: 247846.05
Deduct 850 from 1000 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.

Let's proceed to step 11:
The number 170 fits into 1500 8 times, leaving a remainder of 140.
Write down 8 as next digit of the result. 
Result so far: 247846.058
Subtracting 1360 from 1500 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 12:
When dividing 1400 by 170, we get 8 with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 247846.0588
If we subtract 1360 from 1400, we 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.

After the division, we end up with 247846.0588 and a remainder of 0.0004.