We look at the division of 388545 by 42 
Our goal is to divide 388545 by 42.

Step 1:
If we divide 3 by 42, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 42

Moving on to step 2:
When dividing 38 by 42, we get 0 with a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 38 and we're left with 38.
Grab the next digit (8) from the dividend, add it to 38, then carry on: 388 / 42

Advancing to step 3:
If we divide 388 by 42, we get 9 and a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 378 from 388 leaves us with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 42

On to step 4:
The number 42 fits into 105 2 times, leaving a remainder of 21.
Record the quotient 2 as the next digit in the result. 
Result so far: 92.0
Subtracting 84 from 105 leaves us with 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 42

On to step 5:
When dividing 214 by 42, we get 5 with a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 925.0
Subtracting 210 from 214 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 42

Let's proceed to step 6:
42 goes into 45 1 times with a remainder of 3.
The next digit of our result is 1. 
Result so far: 9251.0
The remainder is 3 after subtracting 42 from 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
42 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 9251.0
Deduct 0 from 30 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.

Moving on to step 8:
42 goes into 300 7 times with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 9251.07
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.

Advancing to step 9:
The number 42 fits into 60 1 times, leaving a remainder of 18.
The next digit of our result is 1. 
Result so far: 9251.071
If we take 42 away from 60, we end up with 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 10:
If we divide 180 by 42, we get 4 and a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 9251.0714
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.

Moving on to step 11:
The number 42 fits into 120 2 times, leaving a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 9251.07142
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.

Advancing to step 12:
The number 42 fits into 360 8 times, leaving a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 9251.071428
Deduct 336 from 360 and we're left 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.

Moving on to step 13:
42 can be fit into 240 5 times, resulting in a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 9251.0714285
The remainder is 30 after subtracting 210 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 14:
42 can be fit into 300 7 times, resulting in a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 9251.07142857
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.

The final result is 9251.07142857 with a remainder of 6e-09.