We look at the division of 854019 by 10 
The aim is to understand the frequency of 10 in 854019.

On to step 1:
10 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 10

Going ahead to step 2:
When dividing 85 by 10, we get 8 with a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 80 from 85 to get 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 10

Moving on to step 3:
10 can be fit into 54 5 times, resulting in a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 85.0
Subtract 50 from 54 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 10

On to step 4:
10 goes into 40 4 times with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 854.0
Subtracting 40 from 40 leaves us with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 10

On to step 5:
The number 10 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 8540.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 10

Let's proceed to step 6:
19 divided by 10 is 1 with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 85401.0
If we take 10 away from 19, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
The number 10 fits into 90 9 times, leaving a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 85401.9
The remainder is 0 after subtracting 90 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
0 divided by 10 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 85401.9
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.

Moving on to step 9:
The number 10 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 85401.9
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.

The quotient of the division is 85401.9, and the remainder is 0.0.