We look at the division of 753353 by 51 
The aim is to understand the frequency of 51 in 753353.

Step 1:
51 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 51

Advancing to step 2:
51 can be fit into 75 1 times, resulting in a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 51 away from 75, we end up with 24.
Take the next digit (3) from the dividend and append it to 24, then repeat: 243 / 51

Going ahead to step 3:
When dividing 243 by 51, we get 4 with a remainder of 39.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 204 from 243 leaves us with 39.
Append the next digit (3) from the dividend to 39 and continue with: 393 / 51

On to step 4:
51 goes into 393 7 times with a remainder of 36.
Use 7 as the next digit of our solution. 
Result so far: 147.0
The remainder is 36 after subtracting 357 from 393.
Fetch the next digit (5) from the dividend, attach it to 36 and continue: 365 / 51

Step 5:
If we divide 365 by 51, we get 7 and a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 1477.0
Subtracting 357 from 365 leaves us with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 51

Going ahead to step 6:
51 goes into 83 1 times with a remainder of 32.
The number 1 becomes the next digit in our result. 
Result so far: 14771.0
Subtract 51 from 83 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 7:
320 divided by 51 is 6 with a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 14771.6
Subtract 306 from 320 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
When dividing 140 by 51, we get 2 with a remainder of 38.
The next digit of our result is 2. 
Result so far: 14771.62
Deduct 102 from 140 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 9:
The number 51 fits into 380 7 times, leaving a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 14771.627
If we take 357 away from 380, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 10:
The number 51 fits into 230 4 times, leaving a remainder of 26.
The next digit of our result is 4. 
Result so far: 14771.6274
If we take 204 away from 230, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 11:
51 goes into 260 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 14771.62745
Subtracting 255 from 260 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.

Advancing to step 12:
51 can be fit into 50 0 times, resulting in a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 14771.62745
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 13:
51 can be fit into 500 9 times, resulting in a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 14771.6274509
If we subtract 459 from 500, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 14:
When dividing 410 by 51, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 14771.62745098
Deduct 408 from 410 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.

After the division, we end up with 14771.62745098 and a remainder of 2e-09.