We divide 13415652 by 123
The aim is to understand the frequency of 123 in 13415652.

On to step 1:
When dividing 1 by 123, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 123

On to step 2:
13 divided by 123 is 0 with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Take the next digit (4) from the dividend and append it to 13, then repeat: 134 / 123

Let's proceed to step 3:
123 can be fit into 134 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 123 from 134 leaves us with 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 123

Let's proceed to step 4:
The number 123 fits into 111 0 times, leaving a remainder of 111.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 111, we get 111.
Include the next digit (5) from the dividend after 111, then repeat: 1115 / 123

Let's proceed to step 5:
1115 divided by 123 is 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 109.0
Subtracting 1107 from 1115 leaves us with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 123

Advancing to step 6:
123 can be fit into 86 0 times, resulting in a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 1090.0
Deduct 0 from 86 and we're left with 86.
Fetch the next digit (5) from the dividend, attach it to 86 and continue: 865 / 123

Let's proceed to step 7:
123 goes into 865 7 times with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 10907.0
If we subtract 861 from 865, we get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 123

Step 8:
42 divided by 123 is 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 109070.0
The remainder is 42 after subtracting 0 from 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 9:
123 goes into 420 3 times with a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 109070.3
Deduct 369 from 420 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 10:
The number 123 fits into 510 4 times, leaving a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 109070.34
If we subtract 492 from 510, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 11:
180 divided by 123 is 1 with a remainder of 57.
The number 1 becomes the next digit in our result. 
Result so far: 109070.341
Deduct 123 from 180 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 12:
If we divide 570 by 123, we get 4 and a remainder of 78.
Record the quotient 4 as the next digit in the result. 
Result so far: 109070.3414
Deduct 492 from 570 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 13:
123 goes into 780 6 times with a remainder of 42.
Record the quotient 6 as the next digit in the result. 
Result so far: 109070.34146
Deduct 738 from 780 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 14:
420 divided by 123 is 3 with a remainder of 51.
Write down 3 as next digit of the result. 
Result so far: 109070.341463
If we subtract 369 from 420, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 15:
If we divide 510 by 123, we get 4 and a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 109070.3414634
Deduct 492 from 510 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 16:
When dividing 180 by 123, we get 1 with a remainder of 57.
The next digit of our result is 1. 
Result so far: 109070.34146341
Subtracting 123 from 180 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final outcome is 109070.34146341, with a leftover of 5.7e-08.