We look at the division of 16340628 by 647 
The aim is to understand the frequency of 647 in 16340628.

On to step 1:
When dividing 1 by 647, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 647

On to step 2:
16 divided by 647 is 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Include the next digit (3) from the dividend after 16, then repeat: 163 / 647

On to step 3:
647 goes into 163 0 times with a remainder of 163.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 163 to get 163.
Bring next digit (4) of the dividend behind the 163 and repeat the process: 1634 / 647

Step 4:
When dividing 1634 by 647, we get 2 with a remainder of 340.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 1294 from 1634 leaves us with 340.
Bring next digit (0) of the dividend behind the 340 and repeat the process: 3400 / 647

Let's proceed to step 5:
When dividing 3400 by 647, we get 5 with a remainder of 165.
Use 5 as the next digit of our solution. 
Result so far: 25.0
If we subtract 3235 from 3400, we get 165.
Grab the next digit (6) from the dividend, add it to 165, then carry on: 1656 / 647

On to step 6:
647 can be fit into 1656 2 times, resulting in a remainder of 362.
The number 2 becomes the next digit in our result. 
Result so far: 252.0
If we take 1294 away from 1656, we end up with 362.
Append the next digit (2) from the dividend to 362 and continue with: 3622 / 647

On to step 7:
647 can be fit into 3622 5 times, resulting in a remainder of 387.
Put 5 as the next digit of the answer. 
Result so far: 2525.0
Subtract 3235 from 3622 to get 387.
Append the next digit (8) from the dividend to 387 and continue with: 3878 / 647

On to step 8:
When dividing 3878 by 647, we get 5 with a remainder of 643.
Use 5 as the next digit of our solution. 
Result so far: 25255.0
If we subtract 3235 from 3878, we get 643.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6430, and continue the process.

Moving on to step 9:
If we divide 6430 by 647, we get 9 and a remainder of 607.
Use 9 as the next digit of our solution. 
Result so far: 25255.9
The remainder is 607 after subtracting 5823 from 6430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Moving on to step 10:
The number 647 fits into 6070 9 times, leaving a remainder of 247.
Record the quotient 9 as the next digit in the result. 
Result so far: 25255.99
Subtract 5823 from 6070 to get 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

The quotient of the division is 25255.99, and the remainder is 0.247.