We look at the division of 78621510 by 827 
The aim is to understand the frequency of 827 in 78621510.

Step 1:
The number 827 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 827

Moving on to step 2:
827 goes into 78 0 times with a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Bring next digit (6) of the dividend behind the 78 and repeat the process: 786 / 827

Going ahead to step 3:
If we divide 786 by 827, we get 0 and a remainder of 786.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 786 after subtracting 0 from 786.
Take the next digit (2) from the dividend and append it to 786, then repeat: 7862 / 827

Advancing to step 4:
The number 827 fits into 7862 9 times, leaving a remainder of 419.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we subtract 7443 from 7862, we get 419.
Bring next digit (1) of the dividend behind the 419 and repeat the process: 4191 / 827

Advancing to step 5:
When dividing 4191 by 827, we get 5 with a remainder of 56.
Use 5 as the next digit of our solution. 
Result so far: 95.0
If we take 4135 away from 4191, we end up with 56.
Bring next digit (5) of the dividend behind the 56 and repeat the process: 565 / 827

Step 6:
When dividing 565 by 827, we get 0 with a remainder of 565.
The next digit of our result is 0. 
Result so far: 950.0
If we subtract 0 from 565, we get 565.
Bring next digit (1) of the dividend behind the 565 and repeat the process: 5651 / 827

Moving on to step 7:
827 can be fit into 5651 6 times, resulting in a remainder of 689.
Write down 6 as next digit of the result. 
Result so far: 9506.0
Deduct 4962 from 5651 and we're left with 689.
Bring next digit (0) of the dividend behind the 689 and repeat the process: 6890 / 827

Step 8:
If we divide 6890 by 827, we get 8 and a remainder of 274.
The number 8 becomes the next digit in our result. 
Result so far: 95068.0
The remainder is 274 after subtracting 6616 from 6890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Let's proceed to step 9:
If we divide 2740 by 827, we get 3 and a remainder of 259.
Use 3 as the next digit of our solution. 
Result so far: 95068.3
The remainder is 259 after subtracting 2481 from 2740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Let's proceed to step 10:
827 goes into 2590 3 times with a remainder of 109.
Put 3 as the next digit of the answer. 
Result so far: 95068.33
Subtract 2481 from 2590 to get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

The final result is 95068.33 with a remainder of 0.109.