We divide 867912 by 7
The aim is to understand the frequency of 7 in 867912.

Going ahead to step 1:
7 can be fit into 8 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 7 from 8, we get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 7

On to step 2:
16 divided by 7 is 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we take 14 away from 16, we end up with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 7

Step 3:
If we divide 27 by 7, we get 3 and a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 123.0
Deduct 21 from 27 and we're left with 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 7

Advancing to step 4:
69 divided by 7 is 9 with a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 1239.0
Deduct 63 from 69 and we're left with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 7

Moving on to step 5:
If we divide 61 by 7, we get 8 and a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 12398.0
If we take 56 away from 61, we end up with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 7

Moving on to step 6:
52 divided by 7 is 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 123987.0
Subtracting 49 from 52 leaves us 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.

Step 7:
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: 123987.4
Deduct 28 from 30 and we're left 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.

Going ahead to step 8:
20 divided by 7 is 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 123987.42
If we subtract 14 from 20, we 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 9:
60 divided by 7 is 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 123987.428
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.

Moving on to step 10:
If we divide 40 by 7, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 123987.4285
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 11:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 123987.42857
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 12:
If we divide 10 by 7, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 123987.428571
If we subtract 7 from 10, we 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.

Moving on to step 13:
The number 7 fits into 30 4 times, leaving a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 123987.4285714
Deduct 28 from 30 and we're left 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.

Moving on to step 14:
20 divided by 7 is 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 123987.42857142
If we subtract 14 from 20, we 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.

The final result is 123987.42857142 with a remainder of 6e-09.