8502317 divided by 7 
The aim is to understand the frequency of 7 in 8502317.

Moving on to step 1:
8 divided by 7 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 7 from 8 leaves us with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 7

Advancing to step 2:
15 divided by 7 is 2 with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 14 from 15 leaves us with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 7

Step 3:
7 goes into 10 1 times with a remainder of 3.
The next digit of our result is 1. 
Result so far: 121.0
If we take 7 away from 10, we end up with 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 7

Step 4:
32 divided by 7 is 4 with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 1214.0
Subtracting 28 from 32 leaves us with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 7

Let's proceed to step 5:
43 divided by 7 is 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 12146.0
If we subtract 42 from 43, we get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 7

Step 6:
7 can be fit into 11 1 times, resulting in a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 121461.0
If we take 7 away from 11, we end up with 4.
Take the next digit (7) from the dividend and append it to 4, then repeat: 47 / 7

Step 7:
If we divide 47 by 7, we get 6 and a remainder of 5.
Use 6 as the next digit of our solution. 
Result so far: 1214616.0
Subtract 42 from 47 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 8:
7 goes into 50 7 times with a remainder of 1.
The next digit of our result is 7. 
Result so far: 1214616.7
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.

On to step 9:
The number 7 fits into 10 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1214616.71
Subtract 7 from 10 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 10:
7 can be fit into 30 4 times, resulting in a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 1214616.714
Subtracting 28 from 30 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
The number 7 fits into 20 2 times, leaving a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 1214616.7142
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.

On to step 12:
7 goes into 60 8 times with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 1214616.71428
The remainder is 4 after subtracting 56 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 13:
7 can be fit into 40 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 1214616.714285
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.

Let's proceed to step 14:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 1214616.7142857
The remainder is 1 after subtracting 49 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 15:
When dividing 10 by 7, we get 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 1214616.71428571
Deduct 7 from 10 and we're left 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.

The final result is 1214616.71428571 with a remainder of 3e-09.