We look at the division of 899737 by 73 
The aim is to understand the frequency of 73 in 899737.

Let's proceed to step 1:
The number 73 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 73

Let's proceed to step 2:
73 goes into 89 1 times with a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 73 from 89 to get 16.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 73

On to step 3:
When dividing 169 by 73, we get 2 with a remainder of 23.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we take 146 away from 169, we end up with 23.
Bring next digit (7) of the dividend behind the 23 and repeat the process: 237 / 73

Going ahead to step 4:
73 goes into 237 3 times with a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 123.0
If we take 219 away from 237, we end up with 18.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 73

Going ahead to step 5:
When dividing 183 by 73, we get 2 with a remainder of 37.
Write down 2 as next digit of the result. 
Result so far: 1232.0
Deduct 146 from 183 and we're left with 37.
Append the next digit (7) from the dividend to 37 and continue with: 377 / 73

Step 6:
If we divide 377 by 73, we get 5 and a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 12325.0
If we take 365 away from 377, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
73 can be fit into 120 1 times, resulting in a remainder of 47.
Put 1 as the next digit of the answer. 
Result so far: 12325.1
The remainder is 47 after subtracting 73 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 8:
The number 73 fits into 470 6 times, leaving a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 12325.16
Subtracting 438 from 470 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 9:
When dividing 320 by 73, we get 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 12325.164
Subtract 292 from 320 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 10:
The number 73 fits into 280 3 times, leaving a remainder of 61.
The next digit of our result is 3. 
Result so far: 12325.1643
Subtracting 219 from 280 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 11:
610 divided by 73 is 8 with a remainder of 26.
The number 8 becomes the next digit in our result. 
Result so far: 12325.16438
If we take 584 away from 610, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 12:
The number 73 fits into 260 3 times, leaving a remainder of 41.
The number 3 becomes the next digit in our result. 
Result so far: 12325.164383
Subtract 219 from 260 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 13:
When dividing 410 by 73, we get 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 12325.1643835
If we subtract 365 from 410, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 14:
73 can be fit into 450 6 times, resulting in a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 12325.16438356
Deduct 438 from 450 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 12325.16438356, with a leftover of 1.2e-08.