We're dividing 486421 by 38 
We want to figure out the number of times 486421 can be divided by 38.

Let's proceed to step 1:
38 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 38

Advancing to step 2:
48 divided by 38 is 1 with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 10 after subtracting 38 from 48.
Include the next digit (6) from the dividend after 10, then repeat: 106 / 38

On to step 3:
The number 38 fits into 106 2 times, leaving a remainder of 30.
Put 2 as the next digit of the answer. 
Result so far: 12.0
The remainder is 30 after subtracting 76 from 106.
Bring next digit (4) of the dividend behind the 30 and repeat the process: 304 / 38

On to step 4:
When dividing 304 by 38, we get 8 with a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 128.0
Subtracting 304 from 304 leaves us with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 38

Advancing to step 5:
38 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 1280.0
If we subtract 0 from 2, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 38

On to step 6:
If we divide 21 by 38, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 12800.0
The remainder is 21 after subtracting 0 from 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 7:
38 can be fit into 210 5 times, resulting in a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 12800.5
If we subtract 190 from 210, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
When dividing 200 by 38, we get 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 12800.55
If we subtract 190 from 200, 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.

The final result is 12800.55 with a remainder of 0.01.