391749 ÷ 5 
The aim is to understand the frequency of 5 in 391749.

Moving on to step 1:
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: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 5

Let's proceed to step 2:
The number 5 fits into 39 7 times, leaving a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 35 from 39 to get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 5

Going ahead to step 3:
When dividing 41 by 5, we get 8 with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtract 40 from 41 to get 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 5

On to step 4:
5 goes into 17 3 times with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 783.0
Subtracting 15 from 17 leaves us with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 5

Going ahead to step 5:
If we divide 24 by 5, we get 4 and a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 7834.0
If we subtract 20 from 24, we get 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 5

Going ahead to step 6:
When dividing 49 by 5, we get 9 with a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 78349.0
If we take 45 away from 49, we end up 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.

Moving on to step 7:
5 can be fit into 40 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 78349.8
Subtract 40 from 40 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 8:
5 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 78349.8
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.

Advancing to step 9:
If we divide 0 by 5, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 78349.8
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.

Our division results in 78349.8 with a remaining 0.0.