964913 ÷ 51 
The aim is to understand the frequency of 51 in 964913.

Advancing to step 1:
The number 51 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 51

Let's proceed to step 2:
The number 51 fits into 96 1 times, leaving a remainder of 45.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 51 from 96, we get 45.
Bring next digit (4) of the dividend behind the 45 and repeat the process: 454 / 51

Going ahead to step 3:
If we divide 454 by 51, we get 8 and a remainder of 46.
Put 8 as the next digit of the answer. 
Result so far: 18.0
The remainder is 46 after subtracting 408 from 454.
Bring next digit (9) of the dividend behind the 46 and repeat the process: 469 / 51

Going ahead to step 4:
469 divided by 51 is 9 with a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 189.0
The remainder is 10 after subtracting 459 from 469.
Include the next digit (1) from the dividend after 10, then repeat: 101 / 51

Going ahead to step 5:
If we divide 101 by 51, we get 1 and a remainder of 50.
Use 1 as the next digit of our solution. 
Result so far: 1891.0
Subtracting 51 from 101 leaves us with 50.
Bring next digit (3) of the dividend behind the 50 and repeat the process: 503 / 51

Going ahead to step 6:
The number 51 fits into 503 9 times, leaving a remainder of 44.
The next digit of our result is 9. 
Result so far: 18919.0
Subtracting 459 from 503 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
51 goes into 440 8 times with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 18919.8
Deduct 408 from 440 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 8:
51 can be fit into 320 6 times, resulting in a remainder of 14.
The next digit of our result is 6. 
Result so far: 18919.86
If we take 306 away from 320, we end up with 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 9:
When dividing 140 by 51, we get 2 with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 18919.862
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 10:
51 can be fit into 380 7 times, resulting in a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 18919.8627
Subtracting 357 from 380 leaves us 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.

Going ahead to step 11:
When dividing 230 by 51, we get 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 18919.86274
Subtract 204 from 230 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 12:
51 can be fit into 260 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 18919.862745
Subtract 255 from 260 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 13:
If we divide 50 by 51, we get 0 and a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 18919.862745
Deduct 0 from 50 and we're left 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.

Advancing to step 14:
51 goes into 500 9 times with a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 18919.86274509
Subtracting 459 from 500 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

The final outcome is 18919.86274509, with a leftover of 4.1e-08.