We look at the division of 38725855 by 423 
The aim is to understand the frequency of 423 in 38725855.

Let's proceed to step 1:
3 divided by 423 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 423

On to step 2:
423 goes into 38 0 times with a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 38, we end up with 38.
Bring next digit (7) of the dividend behind the 38 and repeat the process: 387 / 423

Step 3:
The number 423 fits into 387 0 times, leaving a remainder of 387.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 387, we end up with 387.
Fetch the next digit (2) from the dividend, attach it to 387 and continue: 3872 / 423

On to step 4:
423 goes into 3872 9 times with a remainder of 65.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 3807 away from 3872, we end up with 65.
Grab the next digit (5) from the dividend, add it to 65, then carry on: 655 / 423

Advancing to step 5:
If we divide 655 by 423, we get 1 and a remainder of 232.
Use 1 as the next digit of our solution. 
Result so far: 91.0
If we take 423 away from 655, we end up with 232.
Append the next digit (8) from the dividend to 232 and continue with: 2328 / 423

Let's proceed to step 6:
2328 divided by 423 is 5 with a remainder of 213.
Write down 5 as next digit of the result. 
Result so far: 915.0
If we take 2115 away from 2328, we end up with 213.
Append the next digit (5) from the dividend to 213 and continue with: 2135 / 423

On to step 7:
When dividing 2135 by 423, we get 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 9155.0
The remainder is 20 after subtracting 2115 from 2135.
Fetch the next digit (5) from the dividend, attach it to 20 and continue: 205 / 423

Moving on to step 8:
423 goes into 205 0 times with a remainder of 205.
Write down 0 as next digit of the result. 
Result so far: 91550.0
Deduct 0 from 205 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 9:
2050 divided by 423 is 4 with a remainder of 358.
Record the quotient 4 as the next digit in the result. 
Result so far: 91550.4
If we subtract 1692 from 2050, we get 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

On to step 10:
423 goes into 3580 8 times with a remainder of 196.
Write down 8 as next digit of the result. 
Result so far: 91550.48
If we subtract 3384 from 3580, we get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Moving on to step 11:
When dividing 1960 by 423, we get 4 with a remainder of 268.
Put 4 as the next digit of the answer. 
Result so far: 91550.484
Subtract 1692 from 1960 to get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Step 12:
When dividing 2680 by 423, we get 6 with a remainder of 142.
Record the quotient 6 as the next digit in the result. 
Result so far: 91550.4846
The remainder is 142 after subtracting 2538 from 2680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

On to step 13:
The number 423 fits into 1420 3 times, leaving a remainder of 151.
Put 3 as the next digit of the answer. 
Result so far: 91550.48463
If we subtract 1269 from 1420, we get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Advancing to step 14:
423 can be fit into 1510 3 times, resulting in a remainder of 241.
The next digit of our result is 3. 
Result so far: 91550.484633
If we take 1269 away from 1510, we end up with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

The quotient of the division is 91550.484633, and the remainder is 2.41e-05.