We're dividing 154287 by 42 
Let's see how many times 42 fits into 154287.

Moving on to step 1:
42 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 42

Let's proceed to step 2:
42 can be fit into 15 0 times, resulting in a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Grab the next digit (4) from the dividend, add it to 15, then carry on: 154 / 42

Going ahead to step 3:
If we divide 154 by 42, we get 3 and a remainder of 28.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 126 from 154 and we're left with 28.
Append the next digit (2) from the dividend to 28 and continue with: 282 / 42

On to step 4:
When dividing 282 by 42, we get 6 with a remainder of 30.
Use 6 as the next digit of our solution. 
Result so far: 36.0
Subtract 252 from 282 to get 30.
Take the next digit (8) from the dividend and append it to 30, then repeat: 308 / 42

Going ahead to step 5:
When dividing 308 by 42, we get 7 with a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 367.0
Subtracting 294 from 308 leaves us with 14.
Take the next digit (7) from the dividend and append it to 14, then repeat: 147 / 42

On to step 6:
42 can be fit into 147 3 times, resulting in a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 3673.0
Deduct 126 from 147 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 7:
If we divide 210 by 42, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 3673.5
Subtracting 210 from 210 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
42 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3673.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
When dividing 0 by 42, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3673.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 3673.5 and a remainder of 0.0.