We divide 36123763 by 123
The aim is to understand the frequency of 123 in 36123763.

Going ahead to step 1:
The number 123 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 123

Going ahead to step 2:
123 goes into 36 0 times with a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 36 to get 36.
Grab the next digit (1) from the dividend, add it to 36, then carry on: 361 / 123

On to step 3:
The number 123 fits into 361 2 times, leaving a remainder of 115.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 246 from 361 to get 115.
Take the next digit (2) from the dividend and append it to 115, then repeat: 1152 / 123

Step 4:
When dividing 1152 by 123, we get 9 with a remainder of 45.
The next digit of our result is 9. 
Result so far: 29.0
If we take 1107 away from 1152, we end up with 45.
Append the next digit (3) from the dividend to 45 and continue with: 453 / 123

Step 5:
When dividing 453 by 123, we get 3 with a remainder of 84.
The number 3 becomes the next digit in our result. 
Result so far: 293.0
Subtracting 369 from 453 leaves us with 84.
Grab the next digit (7) from the dividend, add it to 84, then carry on: 847 / 123

Moving on to step 6:
847 divided by 123 is 6 with a remainder of 109.
The number 6 becomes the next digit in our result. 
Result so far: 2936.0
If we take 738 away from 847, we end up with 109.
Include the next digit (6) from the dividend after 109, then repeat: 1096 / 123

Step 7:
1096 divided by 123 is 8 with a remainder of 112.
Put 8 as the next digit of the answer. 
Result so far: 29368.0
If we take 984 away from 1096, we end up with 112.
Grab the next digit (3) from the dividend, add it to 112, then carry on: 1123 / 123

Going ahead to step 8:
When dividing 1123 by 123, we get 9 with a remainder of 16.
Write down 9 as next digit of the result. 
Result so far: 293689.0
If we subtract 1107 from 1123, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
123 can be fit into 160 1 times, resulting in a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 293689.1
Subtract 123 from 160 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 10:
When dividing 370 by 123, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 293689.13
Deduct 369 from 370 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 11:
123 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 293689.13
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 12:
123 goes into 100 0 times with a remainder of 100.
The next digit of our result is 0. 
Result so far: 293689.13
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 293689.13, with a leftover of 0.001.