669452 ÷ 51 
The aim is to understand the frequency of 51 in 669452.

Moving on to step 1:
When dividing 6 by 51, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 51

Let's proceed to step 2:
The number 51 fits into 66 1 times, leaving a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 51 from 66, we get 15.
Bring next digit (9) of the dividend behind the 15 and repeat the process: 159 / 51

Let's proceed to step 3:
51 can be fit into 159 3 times, resulting in a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 153 from 159 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 51

Advancing to step 4:
51 can be fit into 64 1 times, resulting in a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 131.0
The remainder is 13 after subtracting 51 from 64.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 51

Going ahead to step 5:
When dividing 135 by 51, we get 2 with a remainder of 33.
Write down 2 as next digit of the result. 
Result so far: 1312.0
The remainder is 33 after subtracting 102 from 135.
Grab the next digit (2) from the dividend, add it to 33, then carry on: 332 / 51

Moving on to step 6:
332 divided by 51 is 6 with a remainder of 26.
The next digit of our result is 6. 
Result so far: 13126.0
Subtracting 306 from 332 leaves us 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.

Moving on to step 7:
51 goes into 260 5 times with a remainder of 5.
The next digit of our result is 5. 
Result so far: 13126.5
If we subtract 255 from 260, we 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.

Advancing to step 8:
51 goes into 50 0 times with a remainder of 50.
The next digit of our result is 0. 
Result so far: 13126.5
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 9:
When dividing 500 by 51, we get 9 with a remainder of 41.
Put 9 as the next digit of the answer. 
Result so far: 13126.509
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.

Moving on to step 10:
When dividing 410 by 51, we get 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 13126.5098
If we subtract 408 from 410, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
The number 51 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 13126.5098
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 12:
51 can be fit into 200 3 times, resulting in a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 13126.509803
The remainder is 47 after subtracting 153 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 13:
51 can be fit into 470 9 times, resulting in a remainder of 11.
The next digit of our result is 9. 
Result so far: 13126.5098039
Deduct 459 from 470 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 14:
51 goes into 110 2 times with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 13126.50980392
Deduct 102 from 110 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 13126.50980392 with a remaining 8e-09.