99553950 divided by 120 
The aim is to understand the frequency of 120 in 99553950.

Moving on to step 1:
The number 120 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 120

Let's proceed to step 2:
120 can be fit into 99 0 times, resulting in a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Bring next digit (5) of the dividend behind the 99 and repeat the process: 995 / 120

Advancing to step 3:
120 goes into 995 8 times with a remainder of 35.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 35 after subtracting 960 from 995.
Take the next digit (5) from the dividend and append it to 35, then repeat: 355 / 120

Advancing to step 4:
120 can be fit into 355 2 times, resulting in a remainder of 115.
The next digit of our result is 2. 
Result so far: 82.0
Subtract 240 from 355 to get 115.
Append the next digit (3) from the dividend to 115 and continue with: 1153 / 120

On to step 5:
120 can be fit into 1153 9 times, resulting in a remainder of 73.
Record the quotient 9 as the next digit in the result. 
Result so far: 829.0
Subtract 1080 from 1153 to get 73.
Fetch the next digit (9) from the dividend, attach it to 73 and continue: 739 / 120

Advancing to step 6:
120 goes into 739 6 times with a remainder of 19.
Record the quotient 6 as the next digit in the result. 
Result so far: 8296.0
If we take 720 away from 739, we end up with 19.
Bring next digit (5) of the dividend behind the 19 and repeat the process: 195 / 120

Let's proceed to step 7:
If we divide 195 by 120, we get 1 and a remainder of 75.
Put 1 as the next digit of the answer. 
Result so far: 82961.0
If we take 120 away from 195, we end up with 75.
Grab the next digit (0) from the dividend, add it to 75, then carry on: 750 / 120

Going ahead to step 8:
750 divided by 120 is 6 with a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 829616.0
Subtracting 720 from 750 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 9:
The number 120 fits into 300 2 times, leaving a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 829616.2
If we subtract 240 from 300, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 10:
600 divided by 120 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 829616.25
Deduct 600 from 600 and we're left 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 11:
The number 120 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 829616.25
Deduct 0 from 0 and we're left 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.

On to step 12:
When dividing 0 by 120, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 829616.25
Subtracting 0 from 0 leaves us 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.

The final result is 829616.25 with a remainder of 0.0.