We look at the division of 278067 by 7 
The aim is to understand the frequency of 7 in 278067.

Step 1:
7 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 7

Advancing to step 2:
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: 3.0
Subtracting 21 from 27 leaves us with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 7

Going ahead to step 3:
7 goes into 68 9 times with a remainder of 5.
The next digit of our result is 9. 
Result so far: 39.0
The remainder is 5 after subtracting 63 from 68.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 7

On to step 4:
7 goes into 50 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 397.0
Deduct 49 from 50 and we're left with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 7

On to step 5:
The number 7 fits into 16 2 times, leaving a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 3972.0
Subtract 14 from 16 to get 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 7

On to step 6:
7 can be fit into 27 3 times, resulting in a remainder of 6.
The next digit of our result is 3. 
Result so far: 39723.0
If we subtract 21 from 27, 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.

Moving on to step 7:
The number 7 fits into 60 8 times, leaving a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 39723.8
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.

Going ahead to step 8:
When dividing 40 by 7, we get 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 39723.85
If we subtract 35 from 40, we 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.

Let's proceed to step 9:
If we divide 50 by 7, we get 7 and a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 39723.857
Deduct 49 from 50 and we're left with 1.
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 10:
7 goes into 10 1 times with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 39723.8571
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.

Step 11:
When dividing 30 by 7, we get 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 39723.85714
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 12:
20 divided by 7 is 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 39723.857142
If we take 14 away from 20, we end up 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.

Advancing to step 13:
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: 39723.8571428
Subtracting 56 from 60 leaves us 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 14:
The number 7 fits into 40 5 times, leaving a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 39723.85714285
If we take 35 away from 40, we end up 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 39723.85714285, and the remainder is 5e-09.