We look at the division of 644926 by 93 
The aim is to understand the frequency of 93 in 644926.

Going ahead to step 1:
6 divided by 93 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 93

Going ahead to step 2:
93 goes into 64 0 times with a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Bring next digit (4) of the dividend behind the 64 and repeat the process: 644 / 93

Let's proceed to step 3:
93 goes into 644 6 times with a remainder of 86.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 558 from 644 and we're left with 86.
Fetch the next digit (9) from the dividend, attach it to 86 and continue: 869 / 93

Let's proceed to step 4:
The number 93 fits into 869 9 times, leaving a remainder of 32.
Use 9 as the next digit of our solution. 
Result so far: 69.0
Subtracting 837 from 869 leaves us with 32.
Append the next digit (2) from the dividend to 32 and continue with: 322 / 93

Moving on to step 5:
93 can be fit into 322 3 times, resulting in a remainder of 43.
Use 3 as the next digit of our solution. 
Result so far: 693.0
The remainder is 43 after subtracting 279 from 322.
Grab the next digit (6) from the dividend, add it to 43, then carry on: 436 / 93

Moving on to step 6:
436 divided by 93 is 4 with a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 6934.0
Subtract 372 from 436 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 7:
640 divided by 93 is 6 with a remainder of 82.
Write down 6 as next digit of the result. 
Result so far: 6934.6
The remainder is 82 after subtracting 558 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 8:
93 goes into 820 8 times with a remainder of 76.
Use 8 as the next digit of our solution. 
Result so far: 6934.68
Subtracting 744 from 820 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 9:
The number 93 fits into 760 8 times, leaving a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 6934.688
If we subtract 744 from 760, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 6934.688, and the remainder is 0.0016.