We look at the division of 72549 by 42 
We want to figure out the number of times 72549 can be divided by 42.

Let's proceed to step 1:
When dividing 7 by 42, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 42

Step 2:
If we divide 72 by 42, we get 1 and a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 42 from 72, we get 30.
Take the next digit (5) from the dividend and append it to 30, then repeat: 305 / 42

On to step 3:
305 divided by 42 is 7 with a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 17.0
Deduct 294 from 305 and we're left with 11.
Fetch the next digit (4) from the dividend, attach it to 11 and continue: 114 / 42

Moving on to step 4:
If we divide 114 by 42, we get 2 and a remainder of 30.
Record the quotient 2 as the next digit in the result. 
Result so far: 172.0
If we subtract 84 from 114, we get 30.
Grab the next digit (9) from the dividend, add it to 30, then carry on: 309 / 42

Advancing to step 5:
If we divide 309 by 42, we get 7 and a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 1727.0
Subtract 294 from 309 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 6:
150 divided by 42 is 3 with a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 1727.3
Subtract 126 from 150 to 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.

Advancing to step 7:
42 can be fit into 240 5 times, resulting in a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 1727.35
Deduct 210 from 240 and we're left 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.

On to step 8:
When dividing 300 by 42, we get 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 1727.357
Subtract 294 from 300 to 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.

Going ahead to step 9:
If we divide 60 by 42, we get 1 and a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 1727.3571
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
If we divide 180 by 42, we get 4 and a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 1727.35714
Subtract 168 from 180 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.

Going ahead to step 11:
42 goes into 120 2 times with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 1727.357142
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.

Step 12:
If we divide 360 by 42, we get 8 and a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 1727.3571428
If we take 336 away from 360, we end up 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 13:
If we divide 240 by 42, we get 5 and a remainder of 30.
The next digit of our result is 5. 
Result so far: 1727.35714285
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.

Our division results in 1727.35714285 with a remaining 3e-08.