458073 divided by 7 
The aim is to understand the frequency of 7 in 458073.

Step 1:
The number 7 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 7

Advancing to step 2:
7 can be fit into 45 6 times, resulting in a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 42 away from 45, we end up with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 7

Advancing to step 3:
The number 7 fits into 38 5 times, leaving a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 65.0
Subtract 35 from 38 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 7

Going ahead to step 4:
7 can be fit into 30 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 654.0
Subtracting 28 from 30 leaves us with 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 7

Moving on to step 5:
When dividing 27 by 7, we get 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 6543.0
If we take 21 away from 27, we end up with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 7

On to step 6:
63 divided by 7 is 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 65439.0
If we subtract 63 from 63, 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.

Advancing to step 7:
7 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 65439.0
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.

Let's proceed to step 8:
7 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 65439.0
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.

The quotient of the division is 65439.0, and the remainder is 0.0.