68484413 ÷ 123 
The aim is to understand the frequency of 123 in 68484413.

Let's proceed to step 1:
When dividing 6 by 123, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 123

On to step 2:
68 divided by 123 is 0 with a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Grab the next digit (4) from the dividend, add it to 68, then carry on: 684 / 123

Step 3:
When dividing 684 by 123, we get 5 with a remainder of 69.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 615 from 684 to get 69.
Include the next digit (8) from the dividend after 69, then repeat: 698 / 123

Let's proceed to step 4:
123 can be fit into 698 5 times, resulting in a remainder of 83.
Put 5 as the next digit of the answer. 
Result so far: 55.0
If we take 615 away from 698, we end up with 83.
Fetch the next digit (4) from the dividend, attach it to 83 and continue: 834 / 123

Moving on to step 5:
The number 123 fits into 834 6 times, leaving a remainder of 96.
Record the quotient 6 as the next digit in the result. 
Result so far: 556.0
Subtracting 738 from 834 leaves us with 96.
Bring next digit (4) of the dividend behind the 96 and repeat the process: 964 / 123

Let's proceed to step 6:
When dividing 964 by 123, we get 7 with a remainder of 103.
Put 7 as the next digit of the answer. 
Result so far: 5567.0
Subtracting 861 from 964 leaves us with 103.
Bring next digit (1) of the dividend behind the 103 and repeat the process: 1031 / 123

Going ahead to step 7:
The number 123 fits into 1031 8 times, leaving a remainder of 47.
Use 8 as the next digit of our solution. 
Result so far: 55678.0
If we subtract 984 from 1031, we get 47.
Grab the next digit (3) from the dividend, add it to 47, then carry on: 473 / 123

Let's proceed to step 8:
The number 123 fits into 473 3 times, leaving a remainder of 104.
The number 3 becomes the next digit in our result. 
Result so far: 556783.0
Deduct 369 from 473 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 9:
When dividing 1040 by 123, we get 8 with a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 556783.8
The remainder is 56 after subtracting 984 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 10:
123 can be fit into 560 4 times, resulting in a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 556783.84
Subtract 492 from 560 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 11:
123 goes into 680 5 times with a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 556783.845
If we subtract 615 from 680, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 12:
650 divided by 123 is 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 556783.8455
Subtracting 615 from 650 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 556783.8455 and a remainder of 0.00035.