We look at the division of 714303 by 51 
The aim is to understand the frequency of 51 in 714303.

Step 1:
51 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 51

Going ahead to step 2:
When dividing 71 by 51, we get 1 with a remainder of 20.
The next digit of our result is 1. 
Result so far: 1.0
If we take 51 away from 71, we end up with 20.
Append the next digit (4) from the dividend to 20 and continue with: 204 / 51

Going ahead to step 3:
204 divided by 51 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 14.0
Deduct 204 from 204 and we're left with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 51

Advancing to step 4:
If we divide 3 by 51, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 140.0
If we take 0 away from 3, we end up with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 51

On to step 5:
If we divide 30 by 51, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 1400.0
Subtract 0 from 30 to get 30.
Include the next digit (3) from the dividend after 30, then repeat: 303 / 51

On to step 6:
51 can be fit into 303 5 times, resulting in a remainder of 48.
The next digit of our result is 5. 
Result so far: 14005.0
The remainder is 48 after subtracting 255 from 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 7:
51 goes into 480 9 times with a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 14005.9
Subtracting 459 from 480 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 8:
When dividing 210 by 51, we get 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 14005.94
The remainder is 6 after subtracting 204 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 9:
51 can be fit into 60 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 14005.941
If we take 51 away from 60, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 10:
If we divide 90 by 51, we get 1 and a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 14005.9411
If we subtract 51 from 90, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The quotient of the division is 14005.9411, and the remainder is 0.00039.