76438237 divided by 123 
The aim is to understand the frequency of 123 in 76438237.

On to step 1:
The number 123 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 123

Moving on to step 2:
If we divide 76 by 123, we get 0 and a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 76, we get 76.
Append the next digit (4) from the dividend to 76 and continue with: 764 / 123

Going ahead to step 3:
123 goes into 764 6 times with a remainder of 26.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 738 from 764 leaves us with 26.
Include the next digit (3) from the dividend after 26, then repeat: 263 / 123

Let's proceed to step 4:
When dividing 263 by 123, we get 2 with a remainder of 17.
Put 2 as the next digit of the answer. 
Result so far: 62.0
Deduct 246 from 263 and we're left with 17.
Take the next digit (8) from the dividend and append it to 17, then repeat: 178 / 123

Advancing to step 5:
When dividing 178 by 123, we get 1 with a remainder of 55.
Put 1 as the next digit of the answer. 
Result so far: 621.0
Subtract 123 from 178 to get 55.
Fetch the next digit (2) from the dividend, attach it to 55 and continue: 552 / 123

On to step 6:
552 divided by 123 is 4 with a remainder of 60.
Put 4 as the next digit of the answer. 
Result so far: 6214.0
Subtracting 492 from 552 leaves us with 60.
Bring next digit (3) of the dividend behind the 60 and repeat the process: 603 / 123

Moving on to step 7:
603 divided by 123 is 4 with a remainder of 111.
The next digit of our result is 4. 
Result so far: 62144.0
Deduct 492 from 603 and we're left with 111.
Bring next digit (7) of the dividend behind the 111 and repeat the process: 1117 / 123

Let's proceed to step 8:
If we divide 1117 by 123, we get 9 and a remainder of 10.
The number 9 becomes the next digit in our result. 
Result so far: 621449.0
If we subtract 1107 from 1117, 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.

Moving on to step 9:
100 divided by 123 is 0 with a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 621449.0
If we take 0 away from 100, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Advancing to step 10:
123 can be fit into 1000 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 621449.08
Subtract 984 from 1000 to 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.

Going ahead to step 11:
The number 123 fits into 160 1 times, leaving a remainder of 37.
Write down 1 as next digit of the result. 
Result so far: 621449.081
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.

Going ahead to step 12:
When dividing 370 by 123, we get 3 with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 621449.0813
Subtract 369 from 370 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 13:
When dividing 10 by 123, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 621449.0813
Subtracting 0 from 10 leaves us with 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 14:
100 divided by 123 is 0 with a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 621449.0813
Subtract 0 from 100 to 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.

In conclusion, the division gives 621449.0813 with a balance of 1e-05.