725490 ÷ 73 
The aim is to understand the frequency of 73 in 725490.

On to step 1:
If we divide 7 by 73, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 73

On to step 2:
73 goes into 72 0 times with a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Include the next digit (5) from the dividend after 72, then repeat: 725 / 73

Let's proceed to step 3:
When dividing 725 by 73, we get 9 with a remainder of 68.
The next digit of our result is 9. 
Result so far: 9.0
If we take 657 away from 725, we end up with 68.
Fetch the next digit (4) from the dividend, attach it to 68 and continue: 684 / 73

Let's proceed to step 4:
73 goes into 684 9 times with a remainder of 27.
The next digit of our result is 9. 
Result so far: 99.0
The remainder is 27 after subtracting 657 from 684.
Append the next digit (9) from the dividend to 27 and continue with: 279 / 73

Let's proceed to step 5:
If we divide 279 by 73, we get 3 and a remainder of 60.
The number 3 becomes the next digit in our result. 
Result so far: 993.0
Deduct 219 from 279 and we're left with 60.
Fetch the next digit (0) from the dividend, attach it to 60 and continue: 600 / 73

Step 6:
600 divided by 73 is 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 9938.0
If we subtract 584 from 600, we 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 7:
73 goes into 160 2 times with a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 9938.2
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 8:
If we divide 140 by 73, we get 1 and a remainder of 67.
Use 1 as the next digit of our solution. 
Result so far: 9938.21
Subtracting 73 from 140 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 9:
The number 73 fits into 670 9 times, leaving a remainder of 13.
The next digit of our result is 9. 
Result so far: 9938.219
Deduct 657 from 670 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 10:
73 can be fit into 130 1 times, resulting in a remainder of 57.
Use 1 as the next digit of our solution. 
Result so far: 9938.2191
If we take 73 away from 130, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 11:
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: 9938.21917
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.

Going ahead to step 12:
If we divide 590 by 73, we get 8 and a remainder of 6.
The next digit of our result is 8. 
Result so far: 9938.219178
Deduct 584 from 590 and we're left 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.

Advancing to step 13:
60 divided by 73 is 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 9938.219178
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.

Going ahead to step 14:
When dividing 600 by 73, we get 8 with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 9938.21917808
If we subtract 584 from 600, we 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.

After the division, we end up with 9938.21917808 and a remainder of 1.6e-08.