We're dividing 394490 by 10 
The aim is to understand the frequency of 10 in 394490.

Advancing to step 1:
10 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 10

Step 2:
10 goes into 39 3 times with a remainder of 9.
The next digit of our result is 3. 
Result so far: 3.0
If we take 30 away from 39, we end up with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 10

Let's proceed to step 3:
94 divided by 10 is 9 with a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Subtracting 90 from 94 leaves us with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 10

Step 4:
10 goes into 44 4 times with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 394.0
Subtract 40 from 44 to get 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 10

Advancing to step 5:
When dividing 49 by 10, we get 4 with a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 3944.0
Subtract 40 from 49 to get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 10

Moving on to step 6:
10 can be fit into 90 9 times, resulting in a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 39449.0
Subtract 90 from 90 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.

Let's proceed to step 7:
When dividing 0 by 10, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 39449.0
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.

Going ahead to step 8:
If we divide 0 by 10, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 39449.0
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 39449.0 and a remainder of 0.0.