Let's divide 7780886 by 864
The aim is to understand the frequency of 864 in 7780886.

Step 1:
When dividing 7 by 864, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 864

Step 2:
The number 864 fits into 77 0 times, leaving a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Grab the next digit (8) from the dividend, add it to 77, then carry on: 778 / 864

Let's proceed to step 3:
When dividing 778 by 864, we get 0 with a remainder of 778.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 778 leaves us with 778.
Include the next digit (0) from the dividend after 778, then repeat: 7780 / 864

Step 4:
864 can be fit into 7780 9 times, resulting in a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we take 7776 away from 7780, we end up with 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 864

Let's proceed to step 5:
When dividing 48 by 864, we get 0 with a remainder of 48.
Put 0 as the next digit of the answer. 
Result so far: 90.0
Deduct 0 from 48 and we're left with 48.
Include the next digit (8) from the dividend after 48, then repeat: 488 / 864

Step 6:
864 goes into 488 0 times with a remainder of 488.
Record the quotient 0 as the next digit in the result. 
Result so far: 900.0
If we take 0 away from 488, we end up with 488.
Take the next digit (6) from the dividend and append it to 488, then repeat: 4886 / 864

Step 7:
When dividing 4886 by 864, we get 5 with a remainder of 566.
The next digit of our result is 5. 
Result so far: 9005.0
Subtracting 4320 from 4886 leaves us with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

Let's proceed to step 8:
The number 864 fits into 5660 6 times, leaving a remainder of 476.
Use 6 as the next digit of our solution. 
Result so far: 9005.6
Deduct 5184 from 5660 and we're left with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Let's proceed to step 9:
The number 864 fits into 4760 5 times, leaving a remainder of 440.
Write down 5 as next digit of the result. 
Result so far: 9005.65
If we take 4320 away from 4760, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 10:
When dividing 4400 by 864, we get 5 with a remainder of 80.
The next digit of our result is 5. 
Result so far: 9005.655
The remainder is 80 after subtracting 4320 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The quotient of the division is 9005.655, and the remainder is 0.008.