We divide 100478 by 42
Our goal is to divide 100478 by 42.

Step 1:
42 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 42

Step 2:
42 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 42

Advancing to step 3:
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: 2.0
The remainder is 16 after subtracting 84 from 100.
Take the next digit (4) from the dividend and append it to 16, then repeat: 164 / 42

Going ahead to step 4:
The number 42 fits into 164 3 times, leaving a remainder of 38.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
Subtract 126 from 164 to get 38.
Include the next digit (7) from the dividend after 38, then repeat: 387 / 42

Moving on to step 5:
42 goes into 387 9 times with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 239.0
The remainder is 9 after subtracting 378 from 387.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 42

Going ahead to step 6:
42 goes into 98 2 times with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 2392.0
The remainder is 14 after subtracting 84 from 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 7:
When dividing 140 by 42, we get 3 with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 2392.3
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
When dividing 140 by 42, we get 3 with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 2392.33
The remainder is 14 after subtracting 126 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 2392.33, and the remainder is 0.014.