We divide 667650 by 7
The aim is to understand the frequency of 7 in 667650.

Advancing to step 1:
6 divided by 7 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 7

Advancing to step 2:
7 goes into 66 9 times with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 63 away from 66, we end up with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 7

On to step 3:
7 goes into 37 5 times with a remainder of 2.
The next digit of our result is 5. 
Result so far: 95.0
If we subtract 35 from 37, we get 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 7

Advancing to step 4:
The number 7 fits into 26 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 953.0
Subtracting 21 from 26 leaves us with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 7

Moving on to step 5:
If we divide 55 by 7, we get 7 and a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 9537.0
Deduct 49 from 55 and we're left with 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 7

On to step 6:
7 can be fit into 60 8 times, resulting in a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 95378.0
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 7:
7 goes into 40 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 95378.5
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 8:
If we divide 50 by 7, we get 7 and a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 95378.57
Subtract 49 from 50 to 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: 95378.571
The remainder is 3 after subtracting 7 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 10:
The number 7 fits into 30 4 times, leaving a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 95378.5714
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:
7 goes into 20 2 times with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 95378.57142
Deduct 14 from 20 and we're left 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.

Let's proceed to step 12:
The number 7 fits into 60 8 times, leaving a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 95378.571428
If we subtract 56 from 60, we 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.

Advancing to step 13:
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: 95378.5714285
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.

Moving on to step 14:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 95378.57142857
Subtracting 49 from 50 leaves us 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.

The quotient of the division is 95378.57142857, and the remainder is 1e-09.