We're dividing 668594 by 73 
The aim is to understand the frequency of 73 in 668594.

Going ahead to step 1:
When dividing 6 by 73, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 73

Going ahead to step 2:
73 can be fit into 66 0 times, resulting in a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Include the next digit (8) from the dividend after 66, then repeat: 668 / 73

On to step 3:
If we divide 668 by 73, we get 9 and a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we take 657 away from 668, we end up with 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 73

Advancing to step 4:
When dividing 115 by 73, we get 1 with a remainder of 42.
The next digit of our result is 1. 
Result so far: 91.0
If we subtract 73 from 115, we get 42.
Fetch the next digit (9) from the dividend, attach it to 42 and continue: 429 / 73

On to step 5:
73 goes into 429 5 times with a remainder of 64.
Write down 5 as next digit of the result. 
Result so far: 915.0
Deduct 365 from 429 and we're left with 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 73

Advancing to step 6:
73 goes into 644 8 times with a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 9158.0
If we take 584 away from 644, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 7:
73 can be fit into 600 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 9158.8
Subtract 584 from 600 to 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.

Going ahead to step 8:
If we divide 160 by 73, we get 2 and a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 9158.82
Subtract 146 from 160 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
140 divided by 73 is 1 with a remainder of 67.
Put 1 as the next digit of the answer. 
Result so far: 9158.821
The remainder is 67 after subtracting 73 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 10:
The number 73 fits into 670 9 times, leaving a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 9158.8219
The remainder is 13 after subtracting 657 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 11:
73 can be fit into 130 1 times, resulting in a remainder of 57.
The next digit of our result is 1. 
Result so far: 9158.82191
Subtract 73 from 130 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 12:
The number 73 fits into 570 7 times, leaving a remainder of 59.
Use 7 as the next digit of our solution. 
Result so far: 9158.821917
Subtracting 511 from 570 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 13:
The number 73 fits into 590 8 times, leaving a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 9158.8219178
Subtracting 584 from 590 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 14:
73 can be fit into 60 0 times, resulting in a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 9158.8219178
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

In conclusion, the division gives 9158.8219178 with a balance of 6e-08.