We look at the division of 585685 by 73 
The aim is to understand the frequency of 73 in 585685.

On to step 1:
5 divided by 73 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 73

Advancing to step 2:
73 goes into 58 0 times with a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Include the next digit (5) from the dividend after 58, then repeat: 585 / 73

Moving on to step 3:
73 goes into 585 8 times with a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 584 from 585 and we're left with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 73

Step 4:
If we divide 16 by 73, we get 0 and a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 80.0
If we take 0 away from 16, we end up with 16.
Append the next digit (8) from the dividend to 16 and continue with: 168 / 73

Going ahead to step 5:
If we divide 168 by 73, we get 2 and a remainder of 22.
The next digit of our result is 2. 
Result so far: 802.0
The remainder is 22 after subtracting 146 from 168.
Include the next digit (5) from the dividend after 22, then repeat: 225 / 73

Advancing to step 6:
73 can be fit into 225 3 times, resulting in a remainder of 6.
The next digit of our result is 3. 
Result so far: 8023.0
The remainder is 6 after subtracting 219 from 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
The number 73 fits into 60 0 times, leaving a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 8023.0
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 8:
600 divided by 73 is 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 8023.08
Deduct 584 from 600 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
160 divided by 73 is 2 with a remainder of 14.
The next digit of our result is 2. 
Result so far: 8023.082
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 10:
73 can be fit into 140 1 times, resulting in a remainder of 67.
Put 1 as the next digit of the answer. 
Result so far: 8023.0821
If we subtract 73 from 140, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 11:
73 can be fit into 670 9 times, resulting in a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 8023.08219
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.

Advancing to step 12:
130 divided by 73 is 1 with a remainder of 57.
Write down 1 as next digit of the result. 
Result so far: 8023.082191
If we subtract 73 from 130, we 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.

On to step 13:
When dividing 570 by 73, we get 7 with a remainder of 59.
Use 7 as the next digit of our solution. 
Result so far: 8023.0821917
Subtract 511 from 570 to get 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 14:
The number 73 fits into 590 8 times, leaving a remainder of 6.
The next digit of our result is 8. 
Result so far: 8023.08219178
The remainder is 6 after subtracting 584 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The quotient of the division is 8023.08219178, and the remainder is 6e-09.