We're dividing 78974680 by 144 
The aim is to understand the frequency of 144 in 78974680.

Moving on to step 1:
7 divided by 144 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 144

Going ahead to step 2:
78 divided by 144 is 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Append the next digit (9) from the dividend to 78 and continue with: 789 / 144

Advancing to step 3:
If we divide 789 by 144, we get 5 and a remainder of 69.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtracting 720 from 789 leaves us with 69.
Take the next digit (7) from the dividend and append it to 69, then repeat: 697 / 144

Let's proceed to step 4:
The number 144 fits into 697 4 times, leaving a remainder of 121.
Write down 4 as next digit of the result. 
Result so far: 54.0
Subtracting 576 from 697 leaves us with 121.
Take the next digit (4) from the dividend and append it to 121, then repeat: 1214 / 144

Step 5:
1214 divided by 144 is 8 with a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 548.0
If we subtract 1152 from 1214, we get 62.
Bring next digit (6) of the dividend behind the 62 and repeat the process: 626 / 144

Let's proceed to step 6:
144 goes into 626 4 times with a remainder of 50.
The next digit of our result is 4. 
Result so far: 5484.0
Subtracting 576 from 626 leaves us with 50.
Bring next digit (8) of the dividend behind the 50 and repeat the process: 508 / 144

On to step 7:
144 goes into 508 3 times with a remainder of 76.
Record the quotient 3 as the next digit in the result. 
Result so far: 54843.0
If we take 432 away from 508, we end up with 76.
Grab the next digit (0) from the dividend, add it to 76, then carry on: 760 / 144

Advancing to step 8:
144 can be fit into 760 5 times, resulting in a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 548435.0
Deduct 720 from 760 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
144 can be fit into 400 2 times, resulting in a remainder of 112.
The next digit of our result is 2. 
Result so far: 548435.2
Subtract 288 from 400 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 10:
1120 divided by 144 is 7 with a remainder of 112.
Use 7 as the next digit of our solution. 
Result so far: 548435.27
If we take 1008 away from 1120, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

On to step 11:
When dividing 1120 by 144, we get 7 with a remainder of 112.
The number 7 becomes the next digit in our result. 
Result so far: 548435.277
Subtracting 1008 from 1120 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

The final outcome is 548435.277, with a leftover of 0.0112.