We're dividing 89109930 by 121 
The aim is to understand the frequency of 121 in 89109930.

On to step 1:
The number 121 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 121

Step 2:
121 goes into 89 0 times with a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Fetch the next digit (1) from the dividend, attach it to 89 and continue: 891 / 121

Moving on to step 3:
The number 121 fits into 891 7 times, leaving a remainder of 44.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 847 from 891 leaves us with 44.
Bring next digit (0) of the dividend behind the 44 and repeat the process: 440 / 121

Advancing to step 4:
121 goes into 440 3 times with a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 73.0
If we subtract 363 from 440, we get 77.
Bring next digit (9) of the dividend behind the 77 and repeat the process: 779 / 121

Going ahead to step 5:
If we divide 779 by 121, we get 6 and a remainder of 53.
The number 6 becomes the next digit in our result. 
Result so far: 736.0
Deduct 726 from 779 and we're left with 53.
Include the next digit (9) from the dividend after 53, then repeat: 539 / 121

Let's proceed to step 6:
121 goes into 539 4 times with a remainder of 55.
Put 4 as the next digit of the answer. 
Result so far: 7364.0
The remainder is 55 after subtracting 484 from 539.
Grab the next digit (3) from the dividend, add it to 55, then carry on: 553 / 121

On to step 7:
121 goes into 553 4 times with a remainder of 69.
Record the quotient 4 as the next digit in the result. 
Result so far: 73644.0
Subtract 484 from 553 to get 69.
Grab the next digit (0) from the dividend, add it to 69, then carry on: 690 / 121

Moving on to step 8:
121 can be fit into 690 5 times, resulting in a remainder of 85.
Put 5 as the next digit of the answer. 
Result so far: 736445.0
The remainder is 85 after subtracting 605 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

On to step 9:
850 divided by 121 is 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 736445.7
Subtract 847 from 850 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 10:
121 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 736445.7
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
The number 121 fits into 300 2 times, leaving a remainder of 58.
Record the quotient 2 as the next digit in the result. 
Result so far: 736445.702
Subtract 242 from 300 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 12:
121 goes into 580 4 times with a remainder of 96.
Put 4 as the next digit of the answer. 
Result so far: 736445.7024
If we take 484 away from 580, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Advancing to step 13:
960 divided by 121 is 7 with a remainder of 113.
The next digit of our result is 7. 
Result so far: 736445.70247
Deduct 847 from 960 and we're left with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Moving on to step 14:
1130 divided by 121 is 9 with a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 736445.702479
The remainder is 41 after subtracting 1089 from 1130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 15:
The number 121 fits into 410 3 times, leaving a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 736445.7024793
Subtracting 363 from 410 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 16:
121 goes into 470 3 times with a remainder of 107.
The number 3 becomes the next digit in our result. 
Result so far: 736445.70247933
Subtract 363 from 470 to get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

In conclusion, the division gives 736445.70247933 with a balance of 1.07e-07.