98729161 divided by 123 
The aim is to understand the frequency of 123 in 98729161.

Going ahead to step 1:
The number 123 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 123

Moving on to step 2:
123 can be fit into 98 0 times, resulting in a remainder of 98.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 98 leaves us with 98.
Include the next digit (7) from the dividend after 98, then repeat: 987 / 123

On to step 3:
When dividing 987 by 123, we get 8 with a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 984 from 987 and we're left with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 123

Moving on to step 4:
32 divided by 123 is 0 with a remainder of 32.
The number 0 becomes the next digit in our result. 
Result so far: 80.0
The remainder is 32 after subtracting 0 from 32.
Include the next digit (9) from the dividend after 32, then repeat: 329 / 123

Advancing to step 5:
When dividing 329 by 123, we get 2 with a remainder of 83.
Use 2 as the next digit of our solution. 
Result so far: 802.0
Subtracting 246 from 329 leaves us with 83.
Include the next digit (1) from the dividend after 83, then repeat: 831 / 123

Advancing to step 6:
123 can be fit into 831 6 times, resulting in a remainder of 93.
Record the quotient 6 as the next digit in the result. 
Result so far: 8026.0
If we take 738 away from 831, we end up with 93.
Include the next digit (6) from the dividend after 93, then repeat: 936 / 123

Moving on to step 7:
123 goes into 936 7 times with a remainder of 75.
The number 7 becomes the next digit in our result. 
Result so far: 80267.0
Subtracting 861 from 936 leaves us with 75.
Grab the next digit (1) from the dividend, add it to 75, then carry on: 751 / 123

Going ahead to step 8:
751 divided by 123 is 6 with a remainder of 13.
Record the quotient 6 as the next digit in the result. 
Result so far: 802676.0
Deduct 738 from 751 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 9:
123 can be fit into 130 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 802676.1
If we take 123 away from 130, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 10:
123 can be fit into 70 0 times, resulting in a remainder of 70.
The next digit of our result is 0. 
Result so far: 802676.1
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 11:
If we divide 700 by 123, we get 5 and a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 802676.105
If we take 615 away from 700, we end up with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 12:
If we divide 850 by 123, we get 6 and a remainder of 112.
Use 6 as the next digit of our solution. 
Result so far: 802676.1056
The remainder is 112 after subtracting 738 from 850.
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 13:
1120 divided by 123 is 9 with a remainder of 13.
The next digit of our result is 9. 
Result so far: 802676.10569
Subtracting 1107 from 1120 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 14:
123 goes into 130 1 times with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 802676.105691
Subtracting 123 from 130 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 15:
70 divided by 123 is 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 802676.105691
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 16:
123 can be fit into 700 5 times, resulting in a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 802676.10569105
The remainder is 85 after subtracting 615 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

In conclusion, the division gives 802676.10569105 with a balance of 8.5e-08.