We divide 38564435 by 123
The aim is to understand the frequency of 123 in 38564435.

Step 1:
123 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 123

On to step 2:
When dividing 38 by 123, we get 0 with a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 38 and we're left with 38.
Grab the next digit (5) from the dividend, add it to 38, then carry on: 385 / 123

Going ahead to step 3:
When dividing 385 by 123, we get 3 with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 16 after subtracting 369 from 385.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 123

Let's proceed to step 4:
166 divided by 123 is 1 with a remainder of 43.
The next digit of our result is 1. 
Result so far: 31.0
Subtracting 123 from 166 leaves us with 43.
Fetch the next digit (4) from the dividend, attach it to 43 and continue: 434 / 123

On to step 5:
123 goes into 434 3 times with a remainder of 65.
Record the quotient 3 as the next digit in the result. 
Result so far: 313.0
Deduct 369 from 434 and we're left with 65.
Append the next digit (4) from the dividend to 65 and continue with: 654 / 123

Step 6:
123 goes into 654 5 times with a remainder of 39.
Put 5 as the next digit of the answer. 
Result so far: 3135.0
Subtract 615 from 654 to get 39.
Bring next digit (3) of the dividend behind the 39 and repeat the process: 393 / 123

Step 7:
When dividing 393 by 123, we get 3 with a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 31353.0
Deduct 369 from 393 and we're left with 24.
Bring next digit (5) of the dividend behind the 24 and repeat the process: 245 / 123

Advancing to step 8:
If we divide 245 by 123, we get 1 and a remainder of 122.
Put 1 as the next digit of the answer. 
Result so far: 313531.0
Deduct 123 from 245 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 9:
123 goes into 1220 9 times with a remainder of 113.
Record the quotient 9 as the next digit in the result. 
Result so far: 313531.9
If we take 1107 away from 1220, we end up with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

On to step 10:
123 goes into 1130 9 times with a remainder of 23.
Put 9 as the next digit of the answer. 
Result so far: 313531.99
Deduct 1107 from 1130 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

After the division, we end up with 313531.99 and a remainder of 0.023.