904869 ÷ 42 
Our goal is to divide 904869 by 42.

Step 1:
9 divided by 42 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 42

Let's proceed to step 2:
If we divide 90 by 42, we get 2 and a remainder of 6.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 84 from 90 to get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 42

Step 3:
When dividing 64 by 42, we get 1 with a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we subtract 42 from 64, we get 22.
Grab the next digit (8) from the dividend, add it to 22, then carry on: 228 / 42

Advancing to step 4:
When dividing 228 by 42, we get 5 with a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 215.0
If we take 210 away from 228, we end up with 18.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 42

Step 5:
42 can be fit into 186 4 times, resulting in a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 2154.0
Subtracting 168 from 186 leaves us with 18.
Bring next digit (9) of the dividend behind the 18 and repeat the process: 189 / 42

Step 6:
42 goes into 189 4 times with a remainder of 21.
The number 4 becomes the next digit in our result. 
Result so far: 21544.0
Subtracting 168 from 189 leaves us 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 number 5 becomes the next digit in our result. 
Result so far: 21544.5
If we subtract 210 from 210, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 42, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 21544.5
Subtracting 0 from 0 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.

Let's proceed to step 9:
0 divided by 42 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 21544.5
Subtract 0 from 0 to get 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 21544.5 and a remainder of 0.0.