We look at the division of 7513773 by 14 
The aim is to understand the frequency of 14 in 7513773.

Step 1:
7 divided by 14 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 14

On to step 2:
The number 14 fits into 75 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 70 from 75 leaves us with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 14

Let's proceed to step 3:
14 goes into 51 3 times with a remainder of 9.
The next digit of our result is 3. 
Result so far: 53.0
Subtract 42 from 51 to get 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 14

On to step 4:
If we divide 93 by 14, we get 6 and a remainder of 9.
Use 6 as the next digit of our solution. 
Result so far: 536.0
Deduct 84 from 93 and we're left with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 14

On to step 5:
14 goes into 97 6 times with a remainder of 13.
Use 6 as the next digit of our solution. 
Result so far: 5366.0
If we subtract 84 from 97, we get 13.
Fetch the next digit (7) from the dividend, attach it to 13 and continue: 137 / 14

Step 6:
14 can be fit into 137 9 times, resulting in a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 53669.0
Deduct 126 from 137 and we're left with 11.
Take the next digit (3) from the dividend and append it to 11, then repeat: 113 / 14

Step 7:
113 divided by 14 is 8 with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 536698.0
If we subtract 112 from 113, we 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.

Step 8:
If we divide 10 by 14, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 536698.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
14 can be fit into 100 7 times, resulting in a remainder of 2.
The next digit of our result is 7. 
Result so far: 536698.07
If we take 98 away from 100, 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.

Advancing to step 10:
When dividing 20 by 14, we get 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 536698.071
If we subtract 14 from 20, 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.

Step 11:
When dividing 60 by 14, we get 4 with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 536698.0714
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 12:
When dividing 40 by 14, we get 2 with a remainder of 12.
The next digit of our result is 2. 
Result so far: 536698.07142
Deduct 28 from 40 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 13:
14 goes into 120 8 times with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 536698.071428
If we subtract 112 from 120, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 14:
When dividing 80 by 14, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 536698.0714285
Deduct 70 from 80 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 15:
14 goes into 100 7 times with a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 536698.07142857
Deduct 98 from 100 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.

The final outcome is 536698.07142857, with a leftover of 2e-09.