329972 ÷ 77 
The aim is to understand the frequency of 77 in 329972.

Moving on to step 1:
77 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 77

Step 2:
If we divide 32 by 77, we get 0 and a remainder of 32.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 32, we end up with 32.
Append the next digit (9) from the dividend to 32 and continue with: 329 / 77

Going ahead to step 3:
77 can be fit into 329 4 times, resulting in a remainder of 21.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 308 from 329, we get 21.
Append the next digit (9) from the dividend to 21 and continue with: 219 / 77

Going ahead to step 4:
77 can be fit into 219 2 times, resulting in a remainder of 65.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
The remainder is 65 after subtracting 154 from 219.
Bring next digit (7) of the dividend behind the 65 and repeat the process: 657 / 77

Going ahead to step 5:
If we divide 657 by 77, we get 8 and a remainder of 41.
Put 8 as the next digit of the answer. 
Result so far: 428.0
The remainder is 41 after subtracting 616 from 657.
Include the next digit (2) from the dividend after 41, then repeat: 412 / 77

Going ahead to step 6:
If we divide 412 by 77, we get 5 and a remainder of 27.
Use 5 as the next digit of our solution. 
Result so far: 4285.0
Deduct 385 from 412 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
77 goes into 270 3 times with a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 4285.3
Deduct 231 from 270 and we're left with 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 8:
77 goes into 390 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 4285.35
Subtracting 385 from 390 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
77 can be fit into 50 0 times, resulting in a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 4285.35
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
The number 77 fits into 500 6 times, leaving a remainder of 38.
Put 6 as the next digit of the answer. 
Result so far: 4285.3506
The remainder is 38 after subtracting 462 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 11:
If we divide 380 by 77, we get 4 and a remainder of 72.
The next digit of our result is 4. 
Result so far: 4285.35064
The remainder is 72 after subtracting 308 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 12:
If we divide 720 by 77, we get 9 and a remainder of 27.
Write down 9 as next digit of the result. 
Result so far: 4285.350649
Subtract 693 from 720 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 13:
77 goes into 270 3 times with a remainder of 39.
The next digit of our result is 3. 
Result so far: 4285.3506493
Subtract 231 from 270 to 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.

Advancing to step 14:
390 divided by 77 is 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 4285.35064935
Deduct 385 from 390 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 4285.35064935 with a remaining 5e-09.