153549 ÷ 42 
Our goal is to divide 153549 by 42.

On to step 1:
The number 42 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 42

Going ahead to step 2:
The number 42 fits into 15 0 times, leaving a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Take the next digit (3) from the dividend and append it to 15, then repeat: 153 / 42

Let's proceed to step 3:
42 can be fit into 153 3 times, resulting in a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 126 away from 153, we end up with 27.
Take the next digit (5) from the dividend and append it to 27, then repeat: 275 / 42

Going ahead to step 4:
When dividing 275 by 42, we get 6 with a remainder of 23.
The next digit of our result is 6. 
Result so far: 36.0
Subtract 252 from 275 to get 23.
Bring next digit (4) of the dividend behind the 23 and repeat the process: 234 / 42

Moving on to step 5:
42 can be fit into 234 5 times, resulting in a remainder of 24.
The number 5 becomes the next digit in our result. 
Result so far: 365.0
If we subtract 210 from 234, we get 24.
Fetch the next digit (9) from the dividend, attach it to 24 and continue: 249 / 42

Step 6:
If we divide 249 by 42, we get 5 and a remainder of 39.
Use 5 as the next digit of our solution. 
Result so far: 3655.0
Subtract 210 from 249 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 7:
390 divided by 42 is 9 with a remainder of 12.
Put 9 as the next digit of the answer. 
Result so far: 3655.9
The remainder is 12 after subtracting 378 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 8:
120 divided by 42 is 2 with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 3655.92
If we subtract 84 from 120, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
When dividing 360 by 42, we get 8 with a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 3655.928
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.

Advancing to step 10:
240 divided by 42 is 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 3655.9285
If we subtract 210 from 240, we get 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 11:
300 divided by 42 is 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 3655.92857
Subtracting 294 from 300 leaves us with 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 12:
42 goes into 60 1 times with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 3655.928571
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.

Moving on to step 13:
42 goes into 180 4 times with a remainder of 12.
The next digit of our result is 4. 
Result so far: 3655.9285714
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.

Step 14:
120 divided by 42 is 2 with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 3655.92857142
If we take 84 away from 120, we end up 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.

The quotient of the division is 3655.92857142, and the remainder is 3.6e-08.