45220 ÷ 7 
The aim is to understand the frequency of 7 in 45220.

Moving on to step 1:
If we divide 4 by 7, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 7

On to step 2:
7 can be fit into 45 6 times, resulting in a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 3 after subtracting 42 from 45.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 7

On to step 3:
32 divided by 7 is 4 with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 64.0
If we subtract 28 from 32, we get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 7

Let's proceed to step 4:
7 goes into 42 6 times with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 646.0
If we subtract 42 from 42, we get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 7

Step 5:
0 divided by 7 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6460.0
Deduct 0 from 0 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.

Let's proceed to step 6:
0 divided by 7 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6460.0
Deduct 0 from 0 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.

Step 7:
The number 7 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 6460.0
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.

The quotient of the division is 6460.0, and the remainder is 0.0.