We're dividing 394320 by 51 
The aim is to understand the frequency of 51 in 394320.

Let's proceed to step 1:
The number 51 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 51

Step 2:
39 divided by 51 is 0 with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Append the next digit (4) from the dividend to 39 and continue with: 394 / 51

Let's proceed to step 3:
51 goes into 394 7 times with a remainder of 37.
The next digit of our result is 7. 
Result so far: 7.0
The remainder is 37 after subtracting 357 from 394.
Fetch the next digit (3) from the dividend, attach it to 37 and continue: 373 / 51

Step 4:
51 can be fit into 373 7 times, resulting in a remainder of 16.
The next digit of our result is 7. 
Result so far: 77.0
If we take 357 away from 373, we end up with 16.
Bring next digit (2) of the dividend behind the 16 and repeat the process: 162 / 51

Moving on to step 5:
51 can be fit into 162 3 times, resulting in a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 773.0
If we take 153 away from 162, we end up with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 51

Step 6:
If we divide 90 by 51, we get 1 and a remainder of 39.
The next digit of our result is 1. 
Result so far: 7731.0
If we subtract 51 from 90, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 7:
390 divided by 51 is 7 with a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 7731.7
If we subtract 357 from 390, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 8:
51 goes into 330 6 times with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 7731.76
If we take 306 away from 330, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
When dividing 240 by 51, we get 4 with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 7731.764
Subtract 204 from 240 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 10:
51 goes into 360 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 7731.7647
If we take 357 away from 360, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 11:
51 can be fit into 30 0 times, resulting in a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 7731.7647
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 12:
When dividing 300 by 51, we get 5 with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 7731.764705
Deduct 255 from 300 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 13:
When dividing 450 by 51, we get 8 with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 7731.7647058
Deduct 408 from 450 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 14:
If we divide 420 by 51, we get 8 and a remainder of 12.
The next digit of our result is 8. 
Result so far: 7731.76470588
The remainder is 12 after subtracting 408 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 7731.76470588 with a balance of 1.2e-08.