We're dividing 390943 by 76 
The aim is to understand the frequency of 76 in 390943.

Advancing to step 1:
3 divided by 76 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 76

Going ahead to step 2:
If we divide 39 by 76, we get 0 and a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Include the next digit (0) from the dividend after 39, then repeat: 390 / 76

Moving on to step 3:
When dividing 390 by 76, we get 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 10 after subtracting 380 from 390.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 76

On to step 4:
If we divide 109 by 76, we get 1 and a remainder of 33.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
If we take 76 away from 109, we end up with 33.
Bring next digit (4) of the dividend behind the 33 and repeat the process: 334 / 76

Moving on to step 5:
The number 76 fits into 334 4 times, leaving a remainder of 30.
The next digit of our result is 4. 
Result so far: 514.0
If we subtract 304 from 334, we get 30.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 76

On to step 6:
The number 76 fits into 303 3 times, leaving a remainder of 75.
Use 3 as the next digit of our solution. 
Result so far: 5143.0
If we take 228 away from 303, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 7:
76 goes into 750 9 times with a remainder of 66.
The next digit of our result is 9. 
Result so far: 5143.9
If we take 684 away from 750, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 8:
660 divided by 76 is 8 with a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 5143.98
Deduct 608 from 660 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 9:
When dividing 520 by 76, we get 6 with a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 5143.986
If we take 456 away from 520, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 10:
76 goes into 640 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 5143.9868
Subtract 608 from 640 to get 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 11:
320 divided by 76 is 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 5143.98684
If we subtract 304 from 320, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
76 can be fit into 160 2 times, resulting in a remainder of 8.
The next digit of our result is 2. 
Result so far: 5143.986842
If we subtract 152 from 160, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
When dividing 80 by 76, we get 1 with a remainder of 4.
The next digit of our result is 1. 
Result so far: 5143.9868421
Subtracting 76 from 80 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 14:
The number 76 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 5143.9868421
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

In conclusion, the division gives 5143.9868421 with a balance of 4e-08.