We're dividing 73158275 by 121 
The aim is to understand the frequency of 121 in 73158275.

Let's proceed to step 1:
121 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 121

Step 2:
121 goes into 73 0 times with a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Include the next digit (1) from the dividend after 73, then repeat: 731 / 121

Step 3:
When dividing 731 by 121, we get 6 with a remainder of 5.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 726 from 731 and we're left with 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 121

Advancing to step 4:
121 can be fit into 55 0 times, resulting in a remainder of 55.
The next digit of our result is 0. 
Result so far: 60.0
The remainder is 55 after subtracting 0 from 55.
Append the next digit (8) from the dividend to 55 and continue with: 558 / 121

Moving on to step 5:
121 goes into 558 4 times with a remainder of 74.
Put 4 as the next digit of the answer. 
Result so far: 604.0
If we subtract 484 from 558, we get 74.
Fetch the next digit (2) from the dividend, attach it to 74 and continue: 742 / 121

Moving on to step 6:
742 divided by 121 is 6 with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 6046.0
If we take 726 away from 742, we end up with 16.
Fetch the next digit (7) from the dividend, attach it to 16 and continue: 167 / 121

Let's proceed to step 7:
167 divided by 121 is 1 with a remainder of 46.
Record the quotient 1 as the next digit in the result. 
Result so far: 60461.0
If we take 121 away from 167, we end up with 46.
Take the next digit (5) from the dividend and append it to 46, then repeat: 465 / 121

Let's proceed to step 8:
121 can be fit into 465 3 times, resulting in a remainder of 102.
Use 3 as the next digit of our solution. 
Result so far: 604613.0
Deduct 363 from 465 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Advancing to step 9:
When dividing 1020 by 121, we get 8 with a remainder of 52.
The next digit of our result is 8. 
Result so far: 604613.8
Subtract 968 from 1020 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 10:
520 divided by 121 is 4 with a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 604613.84
If we subtract 484 from 520, we 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.

Step 11:
121 goes into 360 2 times with a remainder of 118.
The next digit of our result is 2. 
Result so far: 604613.842
If we take 242 away from 360, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Advancing to step 12:
The number 121 fits into 1180 9 times, leaving a remainder of 91.
The next digit of our result is 9. 
Result so far: 604613.8429
If we subtract 1089 from 1180, we get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

On to step 13:
If we divide 910 by 121, we get 7 and a remainder of 63.
Put 7 as the next digit of the answer. 
Result so far: 604613.84297
Subtract 847 from 910 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 14:
630 divided by 121 is 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 604613.842975
If we take 605 away from 630, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 15:
When dividing 250 by 121, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 604613.8429752
If we subtract 242 from 250, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 16:
80 divided by 121 is 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 604613.8429752
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 604613.8429752, with a leftover of 8e-08.