347669 ÷ 51 
The aim is to understand the frequency of 51 in 347669.

On to step 1:
If we divide 3 by 51, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 51

Let's proceed to step 2:
If we divide 34 by 51, we get 0 and a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 34, we get 34.
Take the next digit (7) from the dividend and append it to 34, then repeat: 347 / 51

On to step 3:
When dividing 347 by 51, we get 6 with a remainder of 41.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 306 from 347 and we're left with 41.
Bring next digit (6) of the dividend behind the 41 and repeat the process: 416 / 51

Advancing to step 4:
51 can be fit into 416 8 times, resulting in a remainder of 8.
The next digit of our result is 8. 
Result so far: 68.0
Subtract 408 from 416 to get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 51

On to step 5:
If we divide 86 by 51, we get 1 and a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 681.0
Subtracting 51 from 86 leaves us with 35.
Fetch the next digit (9) from the dividend, attach it to 35 and continue: 359 / 51

Advancing to step 6:
51 goes into 359 7 times with a remainder of 2.
The next digit of our result is 7. 
Result so far: 6817.0
The remainder is 2 after subtracting 357 from 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
When dividing 20 by 51, we get 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 6817.0
Subtract 0 from 20 to 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.

Moving on to step 8:
The number 51 fits into 200 3 times, leaving a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 6817.03
If we take 153 away from 200, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 9:
51 can be fit into 470 9 times, resulting in a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 6817.039
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.

Advancing to step 10:
110 divided by 51 is 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 6817.0392
If we take 102 away from 110, we end up 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.

Step 11:
51 goes into 80 1 times with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 6817.03921
If we take 51 away from 80, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 12:
51 can be fit into 290 5 times, resulting in a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 6817.039215
If we subtract 255 from 290, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 13:
350 divided by 51 is 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 6817.0392156
The remainder is 44 after subtracting 306 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 14:
When dividing 440 by 51, we get 8 with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 6817.03921568
The remainder is 32 after subtracting 408 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 6817.03921568, with a leftover of 3.2e-08.