We look at the division of 734688 by 7 
The aim is to understand the frequency of 7 in 734688.

Going ahead to step 1:
If we divide 7 by 7, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 7 from 7, we get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 7

Moving on to step 2:
7 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 7

Let's proceed to step 3:
The number 7 fits into 34 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 104.0
Deduct 28 from 34 and we're left with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 7

Let's proceed to step 4:
The number 7 fits into 66 9 times, leaving a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 1049.0
Subtracting 63 from 66 leaves us with 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 7

Advancing to step 5:
38 divided by 7 is 5 with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 10495.0
The remainder is 3 after subtracting 35 from 38.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 7

On to step 6:
If we divide 38 by 7, we get 5 and a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 104955.0
The remainder is 3 after subtracting 35 from 38.
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 7:
When dividing 30 by 7, we get 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 104955.4
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.

Advancing 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: 104955.42
The remainder is 6 after subtracting 14 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 9:
7 can be fit into 60 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 104955.428
Deduct 56 from 60 and we're left 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 10:
7 can be fit into 40 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 104955.4285
The remainder is 5 after subtracting 35 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 11:
7 goes into 50 7 times with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 104955.42857
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.

On to step 12:
10 divided by 7 is 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 104955.428571
Subtracting 7 from 10 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.

Going ahead to step 13:
If we divide 30 by 7, we get 4 and a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 104955.4285714
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.

On to step 14:
7 can be fit into 20 2 times, resulting in a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 104955.42857142
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.

Our division results in 104955.42857142 with a remaining 6e-09.