66813285 ÷ 784 
The aim is to understand the frequency of 784 in 66813285.

Going ahead to step 1:
The number 784 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 784

On to step 2:
66 divided by 784 is 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Bring next digit (8) of the dividend behind the 66 and repeat the process: 668 / 784

On to step 3:
The number 784 fits into 668 0 times, leaving a remainder of 668.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 668, we get 668.
Include the next digit (1) from the dividend after 668, then repeat: 6681 / 784

Going ahead to step 4:
6681 divided by 784 is 8 with a remainder of 409.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 6272 away from 6681, we end up with 409.
Bring next digit (3) of the dividend behind the 409 and repeat the process: 4093 / 784

On to step 5:
4093 divided by 784 is 5 with a remainder of 173.
The number 5 becomes the next digit in our result. 
Result so far: 85.0
The remainder is 173 after subtracting 3920 from 4093.
Fetch the next digit (2) from the dividend, attach it to 173 and continue: 1732 / 784

Step 6:
1732 divided by 784 is 2 with a remainder of 164.
The next digit of our result is 2. 
Result so far: 852.0
Subtract 1568 from 1732 to get 164.
Append the next digit (8) from the dividend to 164 and continue with: 1648 / 784

Let's proceed to step 7:
784 can be fit into 1648 2 times, resulting in a remainder of 80.
Put 2 as the next digit of the answer. 
Result so far: 8522.0
Deduct 1568 from 1648 and we're left with 80.
Include the next digit (5) from the dividend after 80, then repeat: 805 / 784

On to step 8:
784 goes into 805 1 times with a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 85221.0
If we subtract 784 from 805, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 9:
The number 784 fits into 210 0 times, leaving a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 85221.0
If we subtract 0 from 210, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 10:
784 can be fit into 2100 2 times, resulting in a remainder of 532.
Write down 2 as next digit of the result. 
Result so far: 85221.02
If we take 1568 away from 2100, we end up with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Let's proceed to step 11:
784 can be fit into 5320 6 times, resulting in a remainder of 616.
Write down 6 as next digit of the result. 
Result so far: 85221.026
If we subtract 4704 from 5320, we get 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Advancing to step 12:
6160 divided by 784 is 7 with a remainder of 672.
The number 7 becomes the next digit in our result. 
Result so far: 85221.0267
Deduct 5488 from 6160 and we're left with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Let's proceed to step 13:
784 can be fit into 6720 8 times, resulting in a remainder of 448.
The next digit of our result is 8. 
Result so far: 85221.02678
If we take 6272 away from 6720, we end up with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

On to step 14:
If we divide 4480 by 784, we get 5 and a remainder of 560.
Use 5 as the next digit of our solution. 
Result so far: 85221.026785
If we take 3920 away from 4480, we end up with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 15:
The number 784 fits into 5600 7 times, leaving a remainder of 112.
Use 7 as the next digit of our solution. 
Result so far: 85221.0267857
Subtracting 5488 from 5600 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 16:
784 goes into 1120 1 times with a remainder of 336.
The next digit of our result is 1. 
Result so far: 85221.02678571
If we take 784 away from 1120, we end up with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

In conclusion, the division gives 85221.02678571 with a balance of 3.36e-07.