We look at the division of 2088530 by 173 
The aim is to understand the frequency of 173 in 2088530.

Let's proceed to step 1:
173 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 173

Advancing to step 2:
173 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Fetch the next digit (8) from the dividend, attach it to 20 and continue: 208 / 173

Going ahead to step 3:
173 can be fit into 208 1 times, resulting in a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 173 from 208, we get 35.
Grab the next digit (8) from the dividend, add it to 35, then carry on: 358 / 173

Step 4:
The number 173 fits into 358 2 times, leaving a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 346 from 358, we get 12.
Append the next digit (5) from the dividend to 12 and continue with: 125 / 173

On to step 5:
If we divide 125 by 173, we get 0 and a remainder of 125.
Write down 0 as next digit of the result. 
Result so far: 120.0
Deduct 0 from 125 and we're left with 125.
Include the next digit (3) from the dividend after 125, then repeat: 1253 / 173

Advancing to step 6:
1253 divided by 173 is 7 with a remainder of 42.
Record the quotient 7 as the next digit in the result. 
Result so far: 1207.0
Subtract 1211 from 1253 to get 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 173

Advancing to step 7:
If we divide 420 by 173, we get 2 and a remainder of 74.
Write down 2 as next digit of the result. 
Result so far: 12072.0
Subtracting 346 from 420 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 8:
173 can be fit into 740 4 times, resulting in a remainder of 48.
The next digit of our result is 4. 
Result so far: 12072.4
Deduct 692 from 740 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 9:
173 can be fit into 480 2 times, resulting in a remainder of 134.
Use 2 as the next digit of our solution. 
Result so far: 12072.42
The remainder is 134 after subtracting 346 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Moving on to step 10:
When dividing 1340 by 173, we get 7 with a remainder of 129.
Use 7 as the next digit of our solution. 
Result so far: 12072.427
Subtract 1211 from 1340 to get 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

On to step 11:
173 can be fit into 1290 7 times, resulting in a remainder of 79.
Record the quotient 7 as the next digit in the result. 
Result so far: 12072.4277
Deduct 1211 from 1290 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

The final result is 12072.4277 with a remainder of 0.00079.