27429146 ÷ 7 
The aim is to understand the frequency of 7 in 27429146.

Let's proceed to step 1:
2 divided by 7 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 7

Let's proceed to step 2:
27 divided by 7 is 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 21 from 27 to get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 7

Moving on to step 3:
The number 7 fits into 64 9 times, leaving a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtracting 63 from 64 leaves us with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 7

Step 4:
12 divided by 7 is 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 391.0
The remainder is 5 after subtracting 7 from 12.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 7

Step 5:
7 can be fit into 59 8 times, resulting in a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 3918.0
If we subtract 56 from 59, we get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 7

Let's proceed to step 6:
The number 7 fits into 31 4 times, leaving a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 39184.0
Subtract 28 from 31 to get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 7

On to step 7:
7 goes into 34 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 391844.0
Subtract 28 from 34 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 7

Let's proceed to step 8:
If we divide 66 by 7, we get 9 and a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 3918449.0
Subtracting 63 from 66 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.

Let's proceed to step 9:
7 goes into 30 4 times with a remainder of 2.
The next digit of our result is 4. 
Result so far: 3918449.4
If we subtract 28 from 30, we 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.

Going ahead to step 10:
If we divide 20 by 7, we get 2 and a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 3918449.42
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.

Going ahead to step 11:
60 divided by 7 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 3918449.428
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.

Going ahead to step 12:
The number 7 fits into 40 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 3918449.4285
Subtracting 35 from 40 leaves us 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.

Going ahead to step 13:
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: 3918449.42857
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.

Going ahead to step 14:
7 goes into 10 1 times with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 3918449.428571
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.

Step 15:
If we divide 30 by 7, we get 4 and a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 3918449.4285714
If we take 28 away from 30, we end up 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 16:
If we divide 20 by 7, we get 2 and a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 3918449.42857142
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.

The final result is 3918449.42857142 with a remainder of 6e-09.