We look at the division of 178671 by 73 
The aim is to understand the frequency of 73 in 178671.

Going ahead to step 1:
If we divide 1 by 73, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 73

Moving on to step 2:
If we divide 17 by 73, we get 0 and a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Fetch the next digit (8) from the dividend, attach it to 17 and continue: 178 / 73

On to step 3:
73 goes into 178 2 times with a remainder of 32.
The next digit of our result is 2. 
Result so far: 2.0
If we take 146 away from 178, we end up with 32.
Grab the next digit (6) from the dividend, add it to 32, then carry on: 326 / 73

Advancing to step 4:
The number 73 fits into 326 4 times, leaving a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
If we subtract 292 from 326, we get 34.
Append the next digit (7) from the dividend to 34 and continue with: 347 / 73

On to step 5:
73 goes into 347 4 times with a remainder of 55.
Put 4 as the next digit of the answer. 
Result so far: 244.0
If we subtract 292 from 347, we get 55.
Append the next digit (1) from the dividend to 55 and continue with: 551 / 73

Going ahead to step 6:
When dividing 551 by 73, we get 7 with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 2447.0
If we subtract 511 from 551, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 7:
73 goes into 400 5 times with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 2447.5
Subtracting 365 from 400 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 8:
73 can be fit into 350 4 times, resulting in a remainder of 58.
The next digit of our result is 4. 
Result so far: 2447.54
If we take 292 away from 350, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 9:
If we divide 580 by 73, we get 7 and a remainder of 69.
Write down 7 as next digit of the result. 
Result so far: 2447.547
Subtract 511 from 580 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 10:
The number 73 fits into 690 9 times, leaving a remainder of 33.
Put 9 as the next digit of the answer. 
Result so far: 2447.5479
If we take 657 away from 690, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 11:
The number 73 fits into 330 4 times, leaving a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 2447.54794
Deduct 292 from 330 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 12:
When dividing 380 by 73, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 2447.547945
The remainder is 15 after subtracting 365 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 13:
73 can be fit into 150 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 2447.5479452
If we subtract 146 from 150, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 14:
73 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 2447.5479452
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 2447.5479452 and a remainder of 4e-08.