13210216 divided by 51 
The aim is to understand the frequency of 51 in 13210216.

On to step 1:
51 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 51

Advancing to step 2:
When dividing 13 by 51, we get 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Include the next digit (2) from the dividend after 13, then repeat: 132 / 51

Advancing to step 3:
If we divide 132 by 51, we get 2 and a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 102 from 132 to get 30.
Bring next digit (1) of the dividend behind the 30 and repeat the process: 301 / 51

Moving on to step 4:
When dividing 301 by 51, we get 5 with a remainder of 46.
Write down 5 as next digit of the result. 
Result so far: 25.0
Subtracting 255 from 301 leaves us with 46.
Take the next digit (0) from the dividend and append it to 46, then repeat: 460 / 51

Going ahead to step 5:
If we divide 460 by 51, we get 9 and a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 259.0
If we subtract 459 from 460, we get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 51

On to step 6:
The number 51 fits into 12 0 times, leaving a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 2590.0
The remainder is 12 after subtracting 0 from 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 51

Advancing to step 7:
The number 51 fits into 121 2 times, leaving a remainder of 19.
The next digit of our result is 2. 
Result so far: 25902.0
Subtracting 102 from 121 leaves us with 19.
Grab the next digit (6) from the dividend, add it to 19, then carry on: 196 / 51

On to step 8:
The number 51 fits into 196 3 times, leaving a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 259023.0
If we take 153 away from 196, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 9:
The number 51 fits into 430 8 times, leaving a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 259023.8
The remainder is 22 after subtracting 408 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 10:
If we divide 220 by 51, we get 4 and a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 259023.84
Subtract 204 from 220 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
51 can be fit into 160 3 times, resulting in a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 259023.843
If we take 153 away from 160, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 12:
If we divide 70 by 51, we get 1 and a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 259023.8431
If we take 51 away from 70, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 13:
If we divide 190 by 51, we get 3 and a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 259023.84313
Deduct 153 from 190 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 14:
When dividing 370 by 51, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 259023.843137
Subtracting 357 from 370 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 15:
51 goes into 130 2 times with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 259023.8431372
Subtract 102 from 130 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 16:
If we divide 280 by 51, we get 5 and a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 259023.84313725
If we take 255 away from 280, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 259023.84313725 with a remainder of 2.5e-08.