We're dividing 579515 by 7 
The aim is to understand the frequency of 7 in 579515.

Advancing to step 1:
The number 7 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 7

Moving on to step 2:
If we divide 57 by 7, we get 8 and a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 1 after subtracting 56 from 57.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 7

Moving on to step 3:
7 can be fit into 19 2 times, resulting in a remainder of 5.
The next digit of our result is 2. 
Result so far: 82.0
If we take 14 away from 19, we end up with 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 7

Going ahead to step 4:
7 can be fit into 55 7 times, resulting in a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 827.0
Subtract 49 from 55 to get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 7

On to step 5:
7 can be fit into 61 8 times, resulting in a remainder of 5.
The next digit of our result is 8. 
Result so far: 8278.0
Subtracting 56 from 61 leaves us with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 7

On to step 6:
7 goes into 55 7 times with a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 82787.0
Subtract 49 from 55 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
7 can be fit into 60 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 82787.8
If we take 56 away from 60, 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.

Step 8:
7 can be fit into 40 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 82787.85
Deduct 35 from 40 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
When dividing 50 by 7, we get 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 82787.857
If we subtract 49 from 50, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
If we divide 10 by 7, we get 1 and a remainder of 3.
The next digit of our result is 1. 
Result so far: 82787.8571
If we take 7 away from 10, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 11:
7 can be fit into 30 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 82787.85714
Subtract 28 from 30 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
The number 7 fits into 20 2 times, leaving a remainder of 6.
The next digit of our result is 2. 
Result so far: 82787.857142
Subtracting 14 from 20 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 13:
7 can be fit into 60 8 times, resulting in a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 82787.8571428
Subtract 56 from 60 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 14:
When dividing 40 by 7, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 82787.85714285
Deduct 35 from 40 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 82787.85714285, and the remainder is 5e-09.