We're dividing 2193530 by 144 
The aim is to understand the frequency of 144 in 2193530.

Step 1:
If we divide 2 by 144, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 144

Going ahead to step 2:
The number 144 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Append the next digit (9) from the dividend to 21 and continue with: 219 / 144

Moving on to step 3:
144 goes into 219 1 times with a remainder of 75.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 75 after subtracting 144 from 219.
Take the next digit (3) from the dividend and append it to 75, then repeat: 753 / 144

Step 4:
753 divided by 144 is 5 with a remainder of 33.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtracting 720 from 753 leaves us with 33.
Grab the next digit (5) from the dividend, add it to 33, then carry on: 335 / 144

Moving on to step 5:
335 divided by 144 is 2 with a remainder of 47.
The number 2 becomes the next digit in our result. 
Result so far: 152.0
Subtract 288 from 335 to get 47.
Take the next digit (3) from the dividend and append it to 47, then repeat: 473 / 144

Advancing to step 6:
144 can be fit into 473 3 times, resulting in a remainder of 41.
The next digit of our result is 3. 
Result so far: 1523.0
Subtract 432 from 473 to get 41.
Include the next digit (0) from the dividend after 41, then repeat: 410 / 144

Advancing to step 7:
144 goes into 410 2 times with a remainder of 122.
Write down 2 as next digit of the result. 
Result so far: 15232.0
Subtract 288 from 410 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Let's proceed to step 8:
144 goes into 1220 8 times with a remainder of 68.
Write down 8 as next digit of the result. 
Result so far: 15232.8
Deduct 1152 from 1220 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.

Going ahead to step 9:
680 divided by 144 is 4 with a remainder of 104.
The next digit of our result is 4. 
Result so far: 15232.84
Deduct 576 from 680 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 10:
When dividing 1040 by 144, we get 7 with a remainder of 32.
Record the quotient 7 as the next digit in the result. 
Result so far: 15232.847
If we take 1008 away from 1040, we end up 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.

On to step 11:
144 goes into 320 2 times with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 15232.8472
Subtracting 288 from 320 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.

Let's proceed to step 12:
144 goes into 320 2 times with a remainder of 32.
The next digit of our result is 2. 
Result so far: 15232.84722
Subtract 288 from 320 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 15232.84722 and a remainder of 3.2e-05.