We divide 12331830 by 7
The aim is to understand the frequency of 7 in 12331830.

Going ahead to step 1:
The number 7 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 7

Going ahead to step 2:
7 goes into 12 1 times with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 5 after subtracting 7 from 12.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 7

Advancing to step 3:
The number 7 fits into 53 7 times, leaving a remainder of 4.
The next digit of our result is 7. 
Result so far: 17.0
Subtracting 49 from 53 leaves us with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 7

On to step 4:
43 divided by 7 is 6 with a remainder of 1.
The next digit of our result is 6. 
Result so far: 176.0
The remainder is 1 after subtracting 42 from 43.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 7

On to step 5:
The number 7 fits into 11 1 times, leaving a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 1761.0
Subtract 7 from 11 to get 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 7

On to step 6:
When dividing 48 by 7, we get 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 17616.0
If we subtract 42 from 48, we get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 7

Advancing to step 7:
63 divided by 7 is 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 176169.0
Subtracting 63 from 63 leaves us with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 7

Moving on to step 8:
When dividing 0 by 7, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1761690.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
The number 7 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1761690.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
0 divided by 7 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1761690.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 1761690.0 and a remainder of 0.0.