42438411 ÷ 171 
Let's see how many times 171 fits into 42438411.

Advancing to step 1:
171 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 171

Moving on to step 2:
171 goes into 42 0 times with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Append the next digit (4) from the dividend to 42 and continue with: 424 / 171

Let's proceed to step 3:
If we divide 424 by 171, we get 2 and a remainder of 82.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 342 from 424 to get 82.
Include the next digit (3) from the dividend after 82, then repeat: 823 / 171

Advancing to step 4:
When dividing 823 by 171, we get 4 with a remainder of 139.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
If we subtract 684 from 823, we get 139.
Bring next digit (8) of the dividend behind the 139 and repeat the process: 1398 / 171

Moving on to step 5:
171 goes into 1398 8 times with a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 248.0
The remainder is 30 after subtracting 1368 from 1398.
Include the next digit (4) from the dividend after 30, then repeat: 304 / 171

Going ahead to step 6:
When dividing 304 by 171, we get 1 with a remainder of 133.
The number 1 becomes the next digit in our result. 
Result so far: 2481.0
If we take 171 away from 304, we end up with 133.
Grab the next digit (1) from the dividend, add it to 133, then carry on: 1331 / 171

On to step 7:
If we divide 1331 by 171, we get 7 and a remainder of 134.
Write down 7 as next digit of the result. 
Result so far: 24817.0
Deduct 1197 from 1331 and we're left with 134.
Append the next digit (1) from the dividend to 134 and continue with: 1341 / 171

Moving on to step 8:
When dividing 1341 by 171, we get 7 with a remainder of 144.
The number 7 becomes the next digit in our result. 
Result so far: 248177.0
Deduct 1197 from 1341 and we're left with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 9:
1440 divided by 171 is 8 with a remainder of 72.
The next digit of our result is 8. 
Result so far: 248177.8
Subtracting 1368 from 1440 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 10:
If we divide 720 by 171, we get 4 and a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 248177.84
Deduct 684 from 720 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 11:
If we divide 360 by 171, we get 2 and a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 248177.842
The remainder is 18 after subtracting 342 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 12:
180 divided by 171 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 248177.8421
Subtract 171 from 180 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 13:
When dividing 90 by 171, we get 0 with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 248177.8421
Subtract 0 from 90 to 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 14:
171 can be fit into 900 5 times, resulting in a remainder of 45.
The next digit of our result is 5. 
Result so far: 248177.842105
Subtracting 855 from 900 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 15:
171 goes into 450 2 times with a remainder of 108.
Use 2 as the next digit of our solution. 
Result so far: 248177.8421052
Subtract 342 from 450 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.

On to step 16:
The number 171 fits into 1080 6 times, leaving a remainder of 54.
The next digit of our result is 6. 
Result so far: 248177.84210526
If we subtract 1026 from 1080, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 248177.84210526 with a remaining 5.4e-08.