We're dividing 74564409 by 993 
The aim is to understand the frequency of 993 in 74564409.

Going ahead to step 1:
If we divide 7 by 993, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 993

Advancing to step 2:
993 can be fit into 74 0 times, resulting in a remainder of 74.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 74 and we're left with 74.
Bring next digit (5) of the dividend behind the 74 and repeat the process: 745 / 993

Moving on to step 3:
745 divided by 993 is 0 with a remainder of 745.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 745 leaves us with 745.
Include the next digit (6) from the dividend after 745, then repeat: 7456 / 993

Moving on to step 4:
993 can be fit into 7456 7 times, resulting in a remainder of 505.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 505 after subtracting 6951 from 7456.
Grab the next digit (4) from the dividend, add it to 505, then carry on: 5054 / 993

Going ahead to step 5:
993 goes into 5054 5 times with a remainder of 89.
Record the quotient 5 as the next digit in the result. 
Result so far: 75.0
Subtract 4965 from 5054 to get 89.
Append the next digit (4) from the dividend to 89 and continue with: 894 / 993

Advancing to step 6:
894 divided by 993 is 0 with a remainder of 894.
Use 0 as the next digit of our solution. 
Result so far: 750.0
Deduct 0 from 894 and we're left with 894.
Include the next digit (0) from the dividend after 894, then repeat: 8940 / 993

Advancing to step 7:
993 goes into 8940 9 times with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 7509.0
Deduct 8937 from 8940 and we're left with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 993

On to step 8:
993 goes into 39 0 times with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 75090.0
If we take 0 away from 39, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 9:
When dividing 390 by 993, we get 0 with a remainder of 390.
The number 0 becomes the next digit in our result. 
Result so far: 75090.0
Subtract 0 from 390 to get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 10:
The number 993 fits into 3900 3 times, leaving a remainder of 921.
The next digit of our result is 3. 
Result so far: 75090.03
Subtracting 2979 from 3900 leaves us with 921.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9210, and continue the process.

Step 11:
The number 993 fits into 9210 9 times, leaving a remainder of 273.
Write down 9 as next digit of the result. 
Result so far: 75090.039
Subtract 8937 from 9210 to get 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

On to step 12:
When dividing 2730 by 993, we get 2 with a remainder of 744.
Put 2 as the next digit of the answer. 
Result so far: 75090.0392
Subtracting 1986 from 2730 leaves us with 744.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7440, and continue the process.

Going ahead to step 13:
993 can be fit into 7440 7 times, resulting in a remainder of 489.
Record the quotient 7 as the next digit in the result. 
Result so far: 75090.03927
If we take 6951 away from 7440, we end up with 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Going ahead to step 14:
4890 divided by 993 is 4 with a remainder of 918.
Record the quotient 4 as the next digit in the result. 
Result so far: 75090.039274
The remainder is 918 after subtracting 3972 from 4890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9180, and continue the process.

On to step 15:
When dividing 9180 by 993, we get 9 with a remainder of 243.
Use 9 as the next digit of our solution. 
Result so far: 75090.0392749
Subtract 8937 from 9180 to get 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Step 16:
When dividing 2430 by 993, we get 2 with a remainder of 444.
Write down 2 as next digit of the result. 
Result so far: 75090.03927492
If we take 1986 away from 2430, we end up with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

After the division, we end up with 75090.03927492 and a remainder of 4.44e-07.