We divide 815423 by 10
The aim is to understand the frequency of 10 in 815423.

Going ahead to step 1:
8 divided by 10 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 10

Step 2:
81 divided by 10 is 8 with a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 80 away from 81, we end up with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 10

Moving on to step 3:
The number 10 fits into 15 1 times, leaving a remainder of 5.
The next digit of our result is 1. 
Result so far: 81.0
If we subtract 10 from 15, we get 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 10

Going ahead to step 4:
When dividing 54 by 10, we get 5 with a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 815.0
Subtract 50 from 54 to get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 10

Let's proceed to step 5:
10 can be fit into 42 4 times, resulting in a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 8154.0
If we subtract 40 from 42, we get 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 10

Going ahead to step 6:
When dividing 23 by 10, we get 2 with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 81542.0
Subtracting 20 from 23 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
30 divided by 10 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 81542.3
Deduct 30 from 30 and we're left 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.

Moving on to step 8:
When dividing 0 by 10, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 81542.3
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
If we divide 0 by 10, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 81542.3
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 81542.3 with a remaining 0.0.