77420602 ÷ 784 
The aim is to understand the frequency of 784 in 77420602.

Step 1:
The number 784 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 784

Moving on to step 2:
77 divided by 784 is 0 with a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Append the next digit (4) from the dividend to 77 and continue with: 774 / 784

Let's proceed to step 3:
784 goes into 774 0 times with a remainder of 774.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 774 leaves us with 774.
Include the next digit (2) from the dividend after 774, then repeat: 7742 / 784

Advancing to step 4:
The number 784 fits into 7742 9 times, leaving a remainder of 686.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 7056 from 7742 to get 686.
Fetch the next digit (0) from the dividend, attach it to 686 and continue: 6860 / 784

Going ahead to step 5:
6860 divided by 784 is 8 with a remainder of 588.
Write down 8 as next digit of the result. 
Result so far: 98.0
If we subtract 6272 from 6860, we get 588.
Fetch the next digit (6) from the dividend, attach it to 588 and continue: 5886 / 784

Going ahead to step 6:
784 can be fit into 5886 7 times, resulting in a remainder of 398.
Write down 7 as next digit of the result. 
Result so far: 987.0
Subtracting 5488 from 5886 leaves us with 398.
Grab the next digit (0) from the dividend, add it to 398, then carry on: 3980 / 784

Advancing to step 7:
When dividing 3980 by 784, we get 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 9875.0
Subtracting 3920 from 3980 leaves us with 60.
Append the next digit (2) from the dividend to 60 and continue with: 602 / 784

Step 8:
The number 784 fits into 602 0 times, leaving a remainder of 602.
The number 0 becomes the next digit in our result. 
Result so far: 98750.0
Subtract 0 from 602 to get 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Advancing to step 9:
When dividing 6020 by 784, we get 7 with a remainder of 532.
Write down 7 as next digit of the result. 
Result so far: 98750.7
Subtract 5488 from 6020 to get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Advancing to step 10:
784 can be fit into 5320 6 times, resulting in a remainder of 616.
The number 6 becomes the next digit in our result. 
Result so far: 98750.76
The remainder is 616 after subtracting 4704 from 5320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Step 11:
784 can be fit into 6160 7 times, resulting in a remainder of 672.
The number 7 becomes the next digit in our result. 
Result so far: 98750.767
Subtracting 5488 from 6160 leaves us 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.

On to step 12:
If we divide 6720 by 784, we get 8 and a remainder of 448.
Write down 8 as next digit of the result. 
Result so far: 98750.7678
Subtracting 6272 from 6720 leaves us 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.

Advancing to step 13:
When dividing 4480 by 784, we get 5 with a remainder of 560.
Record the quotient 5 as the next digit in the result. 
Result so far: 98750.76785
The remainder is 560 after subtracting 3920 from 4480.
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 14:
If we divide 5600 by 784, we get 7 and a remainder of 112.
The next digit of our result is 7. 
Result so far: 98750.767857
The remainder is 112 after subtracting 5488 from 5600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 15:
The number 784 fits into 1120 1 times, leaving a remainder of 336.
Use 1 as the next digit of our solution. 
Result so far: 98750.7678571
Subtracting 784 from 1120 leaves us 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.

Step 16:
784 goes into 3360 4 times with a remainder of 224.
Record the quotient 4 as the next digit in the result. 
Result so far: 98750.76785714
Subtracting 3136 from 3360 leaves us with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

In conclusion, the division gives 98750.76785714 with a balance of 2.24e-07.