We look at the division of 73933785 by 144 
The aim is to understand the frequency of 144 in 73933785.

Let's proceed to step 1:
If we divide 7 by 144, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 144

Moving on to step 2:
When dividing 73 by 144, we get 0 with a remainder of 73.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Grab the next digit (9) from the dividend, add it to 73, then carry on: 739 / 144

Advancing to step 3:
144 goes into 739 5 times with a remainder of 19.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 720 from 739 to get 19.
Grab the next digit (3) from the dividend, add it to 19, then carry on: 193 / 144

Advancing to step 4:
193 divided by 144 is 1 with a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 51.0
If we subtract 144 from 193, we get 49.
Fetch the next digit (3) from the dividend, attach it to 49 and continue: 493 / 144

On to step 5:
When dividing 493 by 144, we get 3 with a remainder of 61.
The number 3 becomes the next digit in our result. 
Result so far: 513.0
Subtract 432 from 493 to get 61.
Take the next digit (7) from the dividend and append it to 61, then repeat: 617 / 144

Step 6:
144 can be fit into 617 4 times, resulting in a remainder of 41.
Record the quotient 4 as the next digit in the result. 
Result so far: 5134.0
If we take 576 away from 617, we end up with 41.
Bring next digit (8) of the dividend behind the 41 and repeat the process: 418 / 144

Advancing to step 7:
If we divide 418 by 144, we get 2 and a remainder of 130.
The next digit of our result is 2. 
Result so far: 51342.0
If we take 288 away from 418, we end up with 130.
Fetch the next digit (5) from the dividend, attach it to 130 and continue: 1305 / 144

Step 8:
The number 144 fits into 1305 9 times, leaving a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 513429.0
The remainder is 9 after subtracting 1296 from 1305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
90 divided by 144 is 0 with a remainder of 90.
The next digit of our result is 0. 
Result so far: 513429.0
The remainder is 90 after subtracting 0 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 10:
The number 144 fits into 900 6 times, leaving a remainder of 36.
Write down 6 as next digit of the result. 
Result so far: 513429.06
Subtract 864 from 900 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 11:
144 can be fit into 360 2 times, resulting in a remainder of 72.
Write down 2 as next digit of the result. 
Result so far: 513429.062
Deduct 288 from 360 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 12:
If we divide 720 by 144, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 513429.0625
If we take 720 away from 720, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 13:
144 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 513429.0625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 14:
144 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 513429.0625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 513429.0625, with a leftover of 0.0.