We look at the division of 921539 by 5 
The aim is to understand the frequency of 5 in 921539.

On to step 1:
If we divide 9 by 5, we get 1 and a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 4 after subtracting 5 from 9.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 5

Advancing to step 2:
When dividing 42 by 5, we get 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Deduct 40 from 42 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 5

On to step 3:
The number 5 fits into 21 4 times, leaving a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 184.0
Deduct 20 from 21 and we're left with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 5

On to step 4:
5 can be fit into 15 3 times, resulting in a remainder of 0.
The next digit of our result is 3. 
Result so far: 1843.0
Subtract 15 from 15 to get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 5

Going ahead to step 5:
If we divide 3 by 5, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 18430.0
If we take 0 away from 3, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 5

Let's proceed to step 6:
When dividing 39 by 5, we get 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 184307.0
Subtracting 35 from 39 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.

Advancing to step 7:
5 goes into 40 8 times with a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 184307.8
If we subtract 40 from 40, we 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.

Moving on to step 8:
The number 5 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 184307.8
If we subtract 0 from 0, we 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.

Moving on to step 9:
When dividing 0 by 5, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 184307.8
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.

The final outcome is 184307.8, with a leftover of 0.0.