We're dividing 77023608 by 868 
The aim is to understand the frequency of 868 in 77023608.

On to step 1:
If we divide 7 by 868, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 868

Moving on to step 2:
When dividing 77 by 868, we get 0 with a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Bring next digit (0) of the dividend behind the 77 and repeat the process: 770 / 868

On to step 3:
The number 868 fits into 770 0 times, leaving a remainder of 770.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 770, we get 770.
Fetch the next digit (2) from the dividend, attach it to 770 and continue: 7702 / 868

Step 4:
868 goes into 7702 8 times with a remainder of 758.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 6944 away from 7702, we end up with 758.
Fetch the next digit (3) from the dividend, attach it to 758 and continue: 7583 / 868

Step 5:
If we divide 7583 by 868, we get 8 and a remainder of 639.
Write down 8 as next digit of the result. 
Result so far: 88.0
Subtract 6944 from 7583 to get 639.
Fetch the next digit (6) from the dividend, attach it to 639 and continue: 6396 / 868

Moving on to step 6:
6396 divided by 868 is 7 with a remainder of 320.
Put 7 as the next digit of the answer. 
Result so far: 887.0
If we subtract 6076 from 6396, we get 320.
Append the next digit (0) from the dividend to 320 and continue with: 3200 / 868

Advancing to step 7:
868 goes into 3200 3 times with a remainder of 596.
Put 3 as the next digit of the answer. 
Result so far: 8873.0
Deduct 2604 from 3200 and we're left with 596.
Append the next digit (8) from the dividend to 596 and continue with: 5968 / 868

Going ahead to step 8:
868 can be fit into 5968 6 times, resulting in a remainder of 760.
Put 6 as the next digit of the answer. 
Result so far: 88736.0
If we subtract 5208 from 5968, we get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Let's proceed to step 9:
If we divide 7600 by 868, we get 8 and a remainder of 656.
Write down 8 as next digit of the result. 
Result so far: 88736.8
If we subtract 6944 from 7600, we get 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Let's proceed to step 10:
868 can be fit into 6560 7 times, resulting in a remainder of 484.
Put 7 as the next digit of the answer. 
Result so far: 88736.87
The remainder is 484 after subtracting 6076 from 6560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Let's proceed to step 11:
If we divide 4840 by 868, we get 5 and a remainder of 500.
The next digit of our result is 5. 
Result so far: 88736.875
Deduct 4340 from 4840 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 12:
5000 divided by 868 is 5 with a remainder of 660.
Record the quotient 5 as the next digit in the result. 
Result so far: 88736.8755
The remainder is 660 after subtracting 4340 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

The final result is 88736.8755 with a remainder of 0.0066.