346694 divided by 51 
The aim is to understand the frequency of 51 in 346694.

On to step 1:
If we divide 3 by 51, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 51

Step 2:
If we divide 34 by 51, we get 0 and a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 34 leaves us with 34.
Append the next digit (6) from the dividend to 34 and continue with: 346 / 51

Going ahead to step 3:
When dividing 346 by 51, we get 6 with a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 306 from 346 and we're left with 40.
Fetch the next digit (6) from the dividend, attach it to 40 and continue: 406 / 51

Moving on to step 4:
406 divided by 51 is 7 with a remainder of 49.
Use 7 as the next digit of our solution. 
Result so far: 67.0
If we take 357 away from 406, we end up with 49.
Fetch the next digit (9) from the dividend, attach it to 49 and continue: 499 / 51

Advancing to step 5:
51 can be fit into 499 9 times, resulting in a remainder of 40.
Use 9 as the next digit of our solution. 
Result so far: 679.0
If we subtract 459 from 499, we get 40.
Bring next digit (4) of the dividend behind the 40 and repeat the process: 404 / 51

On to step 6:
51 goes into 404 7 times with a remainder of 47.
The number 7 becomes the next digit in our result. 
Result so far: 6797.0
The remainder is 47 after subtracting 357 from 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 7:
470 divided by 51 is 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 6797.9
Subtracting 459 from 470 leaves us 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.

Moving on to step 8:
The number 51 fits into 110 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 6797.92
The remainder is 8 after subtracting 102 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
80 divided by 51 is 1 with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 6797.921
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.

Advancing to step 10:
When dividing 290 by 51, we get 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 6797.9215
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.

Advancing to step 11:
When dividing 350 by 51, we get 6 with a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 6797.92156
Subtracting 306 from 350 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.

Advancing to step 12:
The number 51 fits into 440 8 times, leaving a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 6797.921568
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.

On to step 13:
51 goes into 320 6 times with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 6797.9215686
Subtract 306 from 320 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 14:
The number 51 fits into 140 2 times, leaving a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 6797.92156862
Subtract 102 from 140 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

After the division, we end up with 6797.92156862 and a remainder of 3.8e-08.