85777878 ÷ 308 
The aim is to understand the frequency of 308 in 85777878.

Step 1:
The number 308 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 308

Advancing to step 2:
308 goes into 85 0 times with a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 85, we get 85.
Include the next digit (7) from the dividend after 85, then repeat: 857 / 308

Advancing to step 3:
The number 308 fits into 857 2 times, leaving a remainder of 241.
The next digit of our result is 2. 
Result so far: 2.0
If we take 616 away from 857, we end up with 241.
Take the next digit (7) from the dividend and append it to 241, then repeat: 2417 / 308

Moving on to step 4:
If we divide 2417 by 308, we get 7 and a remainder of 261.
Put 7 as the next digit of the answer. 
Result so far: 27.0
Subtract 2156 from 2417 to get 261.
Take the next digit (7) from the dividend and append it to 261, then repeat: 2617 / 308

Let's proceed to step 5:
If we divide 2617 by 308, we get 8 and a remainder of 153.
Record the quotient 8 as the next digit in the result. 
Result so far: 278.0
Subtract 2464 from 2617 to get 153.
Append the next digit (8) from the dividend to 153 and continue with: 1538 / 308

Advancing to step 6:
The number 308 fits into 1538 4 times, leaving a remainder of 306.
Put 4 as the next digit of the answer. 
Result so far: 2784.0
Subtracting 1232 from 1538 leaves us with 306.
Append the next digit (7) from the dividend to 306 and continue with: 3067 / 308

On to step 7:
If we divide 3067 by 308, we get 9 and a remainder of 295.
Use 9 as the next digit of our solution. 
Result so far: 27849.0
If we take 2772 away from 3067, we end up with 295.
Take the next digit (8) from the dividend and append it to 295, then repeat: 2958 / 308

Going ahead to step 8:
308 goes into 2958 9 times with a remainder of 186.
The next digit of our result is 9. 
Result so far: 278499.0
Deduct 2772 from 2958 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

On to step 9:
When dividing 1860 by 308, we get 6 with a remainder of 12.
The next digit of our result is 6. 
Result so far: 278499.6
The remainder is 12 after subtracting 1848 from 1860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
The number 308 fits into 120 0 times, leaving a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 278499.6
Subtract 0 from 120 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 11:
If we divide 1200 by 308, we get 3 and a remainder of 276.
The next digit of our result is 3. 
Result so far: 278499.603
If we subtract 924 from 1200, we get 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Let's proceed to step 12:
308 goes into 2760 8 times with a remainder of 296.
Use 8 as the next digit of our solution. 
Result so far: 278499.6038
Subtracting 2464 from 2760 leaves us with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 13:
2960 divided by 308 is 9 with a remainder of 188.
Record the quotient 9 as the next digit in the result. 
Result so far: 278499.60389
If we subtract 2772 from 2960, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Step 14:
The number 308 fits into 1880 6 times, leaving a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 278499.603896
Subtracting 1848 from 1880 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 15:
The number 308 fits into 320 1 times, leaving a remainder of 12.
The next digit of our result is 1. 
Result so far: 278499.6038961
Deduct 308 from 320 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 16:
The number 308 fits into 120 0 times, leaving a remainder of 120.
The next digit of our result is 0. 
Result so far: 278499.6038961
If we take 0 away from 120, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

After the division, we end up with 278499.6038961 and a remainder of 1.2e-07.