Let's divide 486643 by 9
We're looking to find how many times 9 goes into 486643.

Step 1:
4 divided by 9 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 9

Going ahead to step 2:
9 goes into 48 5 times with a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 45 from 48 to get 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 9

On to step 3:
9 goes into 36 4 times with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 54.0
If we subtract 36 from 36, we get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 9

Going ahead to step 4:
9 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 540.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 9

Going ahead to step 5:
9 goes into 64 7 times with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 5407.0
Subtracting 63 from 64 leaves us with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 9

On to step 6:
The number 9 fits into 13 1 times, leaving a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 54071.0
If we take 9 away from 13, we end up 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.

Moving on to step 7:
40 divided by 9 is 4 with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 54071.4
Subtracting 36 from 40 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.

Step 8:
40 divided by 9 is 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 54071.44
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 54071.44 and a remainder of 0.004.