We divide 172968 by 42
Our goal is to divide 172968 by 42.

Going ahead to step 1:
42 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 42

Advancing to step 2:
42 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 42

Step 3:
When dividing 172 by 42, we get 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 168 from 172 to get 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 42

On to step 4:
42 goes into 49 1 times with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 41.0
Deduct 42 from 49 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 42

Let's proceed to step 5:
The number 42 fits into 76 1 times, leaving a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 411.0
Deduct 42 from 76 and we're left with 34.
Grab the next digit (8) from the dividend, add it to 34, then carry on: 348 / 42

Going ahead to step 6:
The number 42 fits into 348 8 times, leaving a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 4118.0
Subtract 336 from 348 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
120 divided by 42 is 2 with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 4118.2
Deduct 84 from 120 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.

Advancing to step 8:
42 goes into 360 8 times with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 4118.28
Subtracting 336 from 360 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 9:
When dividing 240 by 42, we get 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 4118.285
Subtracting 210 from 240 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 10:
300 divided by 42 is 7 with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 4118.2857
If we subtract 294 from 300, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
The number 42 fits into 60 1 times, leaving a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 4118.28571
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 12:
The number 42 fits into 180 4 times, leaving a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 4118.285714
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 13:
When dividing 120 by 42, we get 2 with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 4118.2857142
The remainder is 36 after subtracting 84 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 14:
42 can be fit into 360 8 times, resulting in a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 4118.28571428
If we subtract 336 from 360, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 4118.28571428, with a leftover of 2.4e-08.