We look at the division of 30309524 by 777 
The aim is to understand the frequency of 777 in 30309524.

Going ahead to step 1:
777 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 777

On to step 2:
777 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 777

On to step 3:
If we divide 303 by 777, we get 0 and a remainder of 303.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 303 leaves us with 303.
Append the next digit (0) from the dividend to 303 and continue with: 3030 / 777

On to step 4:
777 goes into 3030 3 times with a remainder of 699.
The next digit of our result is 3. 
Result so far: 3.0
If we take 2331 away from 3030, we end up with 699.
Include the next digit (9) from the dividend after 699, then repeat: 6999 / 777

Moving on to step 5:
When dividing 6999 by 777, we get 9 with a remainder of 6.
The next digit of our result is 9. 
Result so far: 39.0
Subtracting 6993 from 6999 leaves us with 6.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 777

Going ahead to step 6:
65 divided by 777 is 0 with a remainder of 65.
Put 0 as the next digit of the answer. 
Result so far: 390.0
The remainder is 65 after subtracting 0 from 65.
Grab the next digit (2) from the dividend, add it to 65, then carry on: 652 / 777

Going ahead to step 7:
777 goes into 652 0 times with a remainder of 652.
The number 0 becomes the next digit in our result. 
Result so far: 3900.0
If we take 0 away from 652, we end up with 652.
Append the next digit (4) from the dividend to 652 and continue with: 6524 / 777

Step 8:
777 goes into 6524 8 times with a remainder of 308.
Use 8 as the next digit of our solution. 
Result so far: 39008.0
Deduct 6216 from 6524 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Let's proceed to step 9:
The number 777 fits into 3080 3 times, leaving a remainder of 749.
The number 3 becomes the next digit in our result. 
Result so far: 39008.3
Subtracting 2331 from 3080 leaves us with 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Going ahead to step 10:
If we divide 7490 by 777, we get 9 and a remainder of 497.
Write down 9 as next digit of the result. 
Result so far: 39008.39
The remainder is 497 after subtracting 6993 from 7490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

Step 11:
4970 divided by 777 is 6 with a remainder of 308.
The number 6 becomes the next digit in our result. 
Result so far: 39008.396
Subtract 4662 from 4970 to get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Going ahead to step 12:
If we divide 3080 by 777, we get 3 and a remainder of 749.
Record the quotient 3 as the next digit in the result. 
Result so far: 39008.3963
If we subtract 2331 from 3080, we get 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Going ahead to step 13:
777 goes into 7490 9 times with a remainder of 497.
Put 9 as the next digit of the answer. 
Result so far: 39008.39639
If we subtract 6993 from 7490, we get 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

On to step 14:
The number 777 fits into 4970 6 times, leaving a remainder of 308.
Use 6 as the next digit of our solution. 
Result so far: 39008.396396
The remainder is 308 after subtracting 4662 from 4970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

On to step 15:
777 can be fit into 3080 3 times, resulting in a remainder of 749.
The next digit of our result is 3. 
Result so far: 39008.3963963
If we take 2331 away from 3080, we end up with 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Step 16:
777 goes into 7490 9 times with a remainder of 497.
Write down 9 as next digit of the result. 
Result so far: 39008.39639639
Deduct 6993 from 7490 and we're left with 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

Our division results in 39008.39639639 with a remaining 4.97e-07.