388012 ÷ 42 
We want to divide 388012 by 42.

On to step 1:
3 divided by 42 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 42

Let's proceed to step 2:
42 can be fit into 38 0 times, resulting in a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 38, we end up with 38.
Bring next digit (8) of the dividend behind the 38 and repeat the process: 388 / 42

Advancing to step 3:
388 divided by 42 is 9 with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 378 from 388 and we're left with 10.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 42

Going ahead to step 4:
100 divided by 42 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 92.0
Subtract 84 from 100 to get 16.
Take the next digit (1) from the dividend and append it to 16, then repeat: 161 / 42

Let's proceed to step 5:
161 divided by 42 is 3 with a remainder of 35.
The number 3 becomes the next digit in our result. 
Result so far: 923.0
Deduct 126 from 161 and we're left with 35.
Fetch the next digit (2) from the dividend, attach it to 35 and continue: 352 / 42

Going ahead to step 6:
When dividing 352 by 42, we get 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 9238.0
Subtracting 336 from 352 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 7:
If we divide 160 by 42, we get 3 and a remainder of 34.
Put 3 as the next digit of the answer. 
Result so far: 9238.3
Subtract 126 from 160 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 8:
If we divide 340 by 42, we get 8 and a remainder of 4.
The next digit of our result is 8. 
Result so far: 9238.38
Subtracting 336 from 340 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
42 goes into 40 0 times with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 9238.38
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
400 divided by 42 is 9 with a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 9238.3809
The remainder is 22 after subtracting 378 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 11:
The number 42 fits into 220 5 times, leaving a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 9238.38095
If we subtract 210 from 220, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 12:
When dividing 100 by 42, we get 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 9238.380952
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
42 goes into 160 3 times with a remainder of 34.
The next digit of our result is 3. 
Result so far: 9238.3809523
If we take 126 away from 160, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 14:
The number 42 fits into 340 8 times, leaving a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 9238.38095238
Subtracting 336 from 340 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 9238.38095238, and the remainder is 4e-09.