We're dividing 912120 by 5 
The aim is to understand the frequency of 5 in 912120.

On to step 1:
5 can be fit into 9 1 times, resulting in a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 5 away from 9, we end up with 4.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 5

Let's proceed to step 2:
5 can be fit into 41 8 times, resulting in a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Deduct 40 from 41 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 5

On to step 3:
When dividing 12 by 5, we get 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 182.0
Deduct 10 from 12 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 5

Step 4:
5 goes into 21 4 times with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 1824.0
Deduct 20 from 21 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 5

Going ahead to step 5:
5 can be fit into 12 2 times, resulting in a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 18242.0
If we subtract 10 from 12, we get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 5

Step 6:
When dividing 20 by 5, we get 4 with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 182424.0
Subtracting 20 from 20 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.

Step 7:
0 divided by 5 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 182424.0
If we take 0 away from 0, we end up 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.

Advancing to step 8:
5 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 182424.0
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.

After the division, we end up with 182424.0 and a remainder of 0.0.