64338907 divided by 993 
The aim is to understand the frequency of 993 in 64338907.

Advancing to step 1:
If we divide 6 by 993, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 993

Going ahead to step 2:
The number 993 fits into 64 0 times, leaving a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Append the next digit (3) from the dividend to 64 and continue with: 643 / 993

Step 3:
The number 993 fits into 643 0 times, leaving a remainder of 643.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 643 leaves us with 643.
Include the next digit (3) from the dividend after 643, then repeat: 6433 / 993

Let's proceed to step 4:
If we divide 6433 by 993, we get 6 and a remainder of 475.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we take 5958 away from 6433, we end up with 475.
Fetch the next digit (8) from the dividend, attach it to 475 and continue: 4758 / 993

Let's proceed to step 5:
The number 993 fits into 4758 4 times, leaving a remainder of 786.
Write down 4 as next digit of the result. 
Result so far: 64.0
If we subtract 3972 from 4758, we get 786.
Take the next digit (9) from the dividend and append it to 786, then repeat: 7869 / 993

Going ahead to step 6:
993 can be fit into 7869 7 times, resulting in a remainder of 918.
Record the quotient 7 as the next digit in the result. 
Result so far: 647.0
Subtracting 6951 from 7869 leaves us with 918.
Take the next digit (0) from the dividend and append it to 918, then repeat: 9180 / 993

Let's proceed to step 7:
When dividing 9180 by 993, we get 9 with a remainder of 243.
The next digit of our result is 9. 
Result so far: 6479.0
Deduct 8937 from 9180 and we're left with 243.
Grab the next digit (7) from the dividend, add it to 243, then carry on: 2437 / 993

Step 8:
If we divide 2437 by 993, we get 2 and a remainder of 451.
The number 2 becomes the next digit in our result. 
Result so far: 64792.0
The remainder is 451 after subtracting 1986 from 2437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Step 9:
When dividing 4510 by 993, we get 4 with a remainder of 538.
Put 4 as the next digit of the answer. 
Result so far: 64792.4
Subtract 3972 from 4510 to get 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Going ahead to step 10:
5380 divided by 993 is 5 with a remainder of 415.
Write down 5 as next digit of the result. 
Result so far: 64792.45
Deduct 4965 from 5380 and we're left with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Moving on to step 11:
When dividing 4150 by 993, we get 4 with a remainder of 178.
Record the quotient 4 as the next digit in the result. 
Result so far: 64792.454
If we subtract 3972 from 4150, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Moving on to step 12:
993 goes into 1780 1 times with a remainder of 787.
The number 1 becomes the next digit in our result. 
Result so far: 64792.4541
Deduct 993 from 1780 and we're left with 787.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7870, and continue the process.

Going ahead to step 13:
The number 993 fits into 7870 7 times, leaving a remainder of 919.
Write down 7 as next digit of the result. 
Result so far: 64792.45417
Subtract 6951 from 7870 to get 919.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9190, and continue the process.

On to step 14:
The number 993 fits into 9190 9 times, leaving a remainder of 253.
The number 9 becomes the next digit in our result. 
Result so far: 64792.454179
Subtract 8937 from 9190 to get 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Advancing to step 15:
When dividing 2530 by 993, we get 2 with a remainder of 544.
Use 2 as the next digit of our solution. 
Result so far: 64792.4541792
The remainder is 544 after subtracting 1986 from 2530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Moving on to step 16:
5440 divided by 993 is 5 with a remainder of 475.
The number 5 becomes the next digit in our result. 
Result so far: 64792.45417925
If we take 4965 away from 5440, we end up with 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

The final result is 64792.45417925 with a remainder of 4.75e-07.