663528 divided by 73 
The aim is to understand the frequency of 73 in 663528.

Let's proceed to step 1:
73 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 73

On to step 2:
When dividing 66 by 73, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Grab the next digit (3) from the dividend, add it to 66, then carry on: 663 / 73

On to step 3:
The number 73 fits into 663 9 times, leaving a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 657 from 663, we get 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 73

Let's proceed to step 4:
73 can be fit into 65 0 times, resulting in a remainder of 65.
The number 0 becomes the next digit in our result. 
Result so far: 90.0
Deduct 0 from 65 and we're left with 65.
Bring next digit (2) of the dividend behind the 65 and repeat the process: 652 / 73

Step 5:
73 goes into 652 8 times with a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 908.0
The remainder is 68 after subtracting 584 from 652.
Grab the next digit (8) from the dividend, add it to 68, then carry on: 688 / 73

On to step 6:
The number 73 fits into 688 9 times, leaving a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 9089.0
Deduct 657 from 688 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 7:
73 can be fit into 310 4 times, resulting in a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 9089.4
Subtracting 292 from 310 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 8:
If we divide 180 by 73, we get 2 and a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 9089.42
If we take 146 away from 180, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 9:
340 divided by 73 is 4 with a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 9089.424
If we take 292 away from 340, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
If we divide 480 by 73, we get 6 and a remainder of 42.
The number 6 becomes the next digit in our result. 
Result so far: 9089.4246
Subtract 438 from 480 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 11:
The number 73 fits into 420 5 times, leaving a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 9089.42465
If we subtract 365 from 420, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 12:
73 can be fit into 550 7 times, resulting in a remainder of 39.
The next digit of our result is 7. 
Result so far: 9089.424657
The remainder is 39 after subtracting 511 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 13:
The number 73 fits into 390 5 times, leaving a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 9089.4246575
Deduct 365 from 390 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 14:
If we divide 250 by 73, we get 3 and a remainder of 31.
The next digit of our result is 3. 
Result so far: 9089.42465753
The remainder is 31 after subtracting 219 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

After the division, we end up with 9089.42465753 and a remainder of 3.1e-08.