161864 divided by 73 
The aim is to understand the frequency of 73 in 161864.

Moving on to step 1:
1 divided by 73 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 73

Let's proceed to step 2:
When dividing 16 by 73, we get 0 with a remainder of 16.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Include the next digit (1) from the dividend after 16, then repeat: 161 / 73

Step 3:
When dividing 161 by 73, we get 2 with a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 146 from 161 leaves us with 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 73

Step 4:
The number 73 fits into 158 2 times, leaving a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 22.0
If we subtract 146 from 158, we get 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 73

On to step 5:
The number 73 fits into 126 1 times, leaving a remainder of 53.
Write down 1 as next digit of the result. 
Result so far: 221.0
Deduct 73 from 126 and we're left with 53.
Grab the next digit (4) from the dividend, add it to 53, then carry on: 534 / 73

Step 6:
The number 73 fits into 534 7 times, leaving a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 2217.0
Subtracting 511 from 534 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
73 can be fit into 230 3 times, resulting in a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 2217.3
If we subtract 219 from 230, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 8:
If we divide 110 by 73, we get 1 and a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 2217.31
Subtracting 73 from 110 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 9:
If we divide 370 by 73, we get 5 and a remainder of 5.
The next digit of our result is 5. 
Result so far: 2217.315
Deduct 365 from 370 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 10:
50 divided by 73 is 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 2217.315
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 11:
500 divided by 73 is 6 with a remainder of 62.
The number 6 becomes the next digit in our result. 
Result so far: 2217.31506
Subtract 438 from 500 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 12:
620 divided by 73 is 8 with a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 2217.315068
The remainder is 36 after subtracting 584 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 13:
If we divide 360 by 73, we get 4 and a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 2217.3150684
Deduct 292 from 360 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 14:
If we divide 680 by 73, we get 9 and a remainder of 23.
The next digit of our result is 9. 
Result so far: 2217.31506849
If we subtract 657 from 680, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final result is 2217.31506849 with a remainder of 2.3e-08.