We look at the division of 83940974 by 173 
The aim is to understand the frequency of 173 in 83940974.

Let's proceed to step 1:
If we divide 8 by 173, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 173

Advancing to step 2:
173 goes into 83 0 times with a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 83 to get 83.
Append the next digit (9) from the dividend to 83 and continue with: 839 / 173

On to step 3:
173 can be fit into 839 4 times, resulting in a remainder of 147.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 147 after subtracting 692 from 839.
Take the next digit (4) from the dividend and append it to 147, then repeat: 1474 / 173

Moving on to step 4:
173 can be fit into 1474 8 times, resulting in a remainder of 90.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
The remainder is 90 after subtracting 1384 from 1474.
Take the next digit (0) from the dividend and append it to 90, then repeat: 900 / 173

Moving on to step 5:
If we divide 900 by 173, we get 5 and a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 485.0
If we take 865 away from 900, we end up with 35.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 173

Advancing to step 6:
When dividing 359 by 173, we get 2 with a remainder of 13.
Use 2 as the next digit of our solution. 
Result so far: 4852.0
Deduct 346 from 359 and we're left with 13.
Grab the next digit (7) from the dividend, add it to 13, then carry on: 137 / 173

Going ahead to step 7:
173 goes into 137 0 times with a remainder of 137.
The next digit of our result is 0. 
Result so far: 48520.0
Subtract 0 from 137 to get 137.
Fetch the next digit (4) from the dividend, attach it to 137 and continue: 1374 / 173

Moving on to step 8:
173 goes into 1374 7 times with a remainder of 163.
Write down 7 as next digit of the result. 
Result so far: 485207.0
If we take 1211 away from 1374, we end up with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Advancing to step 9:
1630 divided by 173 is 9 with a remainder of 73.
Record the quotient 9 as the next digit in the result. 
Result so far: 485207.9
Subtract 1557 from 1630 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 10:
When dividing 730 by 173, we get 4 with a remainder of 38.
Write down 4 as next digit of the result. 
Result so far: 485207.94
Subtract 692 from 730 to get 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 11:
The number 173 fits into 380 2 times, leaving a remainder of 34.
The number 2 becomes the next digit in our result. 
Result so far: 485207.942
Subtracting 346 from 380 leaves us 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.

Going ahead to step 12:
The number 173 fits into 340 1 times, leaving a remainder of 167.
Record the quotient 1 as the next digit in the result. 
Result so far: 485207.9421
Subtract 173 from 340 to get 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

On to step 13:
If we divide 1670 by 173, we get 9 and a remainder of 113.
The next digit of our result is 9. 
Result so far: 485207.94219
If we subtract 1557 from 1670, we get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Moving on to step 14:
When dividing 1130 by 173, we get 6 with a remainder of 92.
The next digit of our result is 6. 
Result so far: 485207.942196
Subtracting 1038 from 1130 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 15:
If we divide 920 by 173, we get 5 and a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 485207.9421965
If we take 865 away from 920, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 16:
173 can be fit into 550 3 times, resulting in a remainder of 31.
Record the quotient 3 as the next digit in the result. 
Result so far: 485207.94219653
Subtracting 519 from 550 leaves us 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.

The final outcome is 485207.94219653, with a leftover of 3.1e-08.