353271 divided by 51 
The aim is to understand the frequency of 51 in 353271.

Step 1:
The number 51 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 51

On to step 2:
35 divided by 51 is 0 with a remainder of 35.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 35 after subtracting 0 from 35.
Take the next digit (3) from the dividend and append it to 35, then repeat: 353 / 51

On to step 3:
51 can be fit into 353 6 times, resulting in a remainder of 47.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 306 away from 353, we end up with 47.
Include the next digit (2) from the dividend after 47, then repeat: 472 / 51

Advancing to step 4:
The number 51 fits into 472 9 times, leaving a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 69.0
The remainder is 13 after subtracting 459 from 472.
Fetch the next digit (7) from the dividend, attach it to 13 and continue: 137 / 51

Going ahead to step 5:
137 divided by 51 is 2 with a remainder of 35.
Put 2 as the next digit of the answer. 
Result so far: 692.0
If we subtract 102 from 137, we get 35.
Grab the next digit (1) from the dividend, add it to 35, then carry on: 351 / 51

Advancing to step 6:
51 goes into 351 6 times with a remainder of 45.
The next digit of our result is 6. 
Result so far: 6926.0
Subtracting 306 from 351 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 7:
If we divide 450 by 51, we get 8 and a remainder of 42.
The next digit of our result is 8. 
Result so far: 6926.8
Subtract 408 from 450 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 8:
51 goes into 420 8 times with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 6926.88
The remainder is 12 after subtracting 408 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 6926.88 and a remainder of 0.012.