We're dividing 15345634 by 423 
The aim is to understand the frequency of 423 in 15345634.

On to step 1:
When dividing 1 by 423, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 423

On to step 2:
If we divide 15 by 423, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 423

Moving on to step 3:
423 goes into 153 0 times with a remainder of 153.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 153, we end up with 153.
Grab the next digit (4) from the dividend, add it to 153, then carry on: 1534 / 423

Advancing to step 4:
When dividing 1534 by 423, we get 3 with a remainder of 265.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 265 after subtracting 1269 from 1534.
Append the next digit (5) from the dividend to 265 and continue with: 2655 / 423

Moving on to step 5:
423 goes into 2655 6 times with a remainder of 117.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
If we subtract 2538 from 2655, we get 117.
Grab the next digit (6) from the dividend, add it to 117, then carry on: 1176 / 423

Let's proceed to step 6:
423 goes into 1176 2 times with a remainder of 330.
The number 2 becomes the next digit in our result. 
Result so far: 362.0
The remainder is 330 after subtracting 846 from 1176.
Include the next digit (3) from the dividend after 330, then repeat: 3303 / 423

Step 7:
When dividing 3303 by 423, we get 7 with a remainder of 342.
The next digit of our result is 7. 
Result so far: 3627.0
Subtract 2961 from 3303 to get 342.
Grab the next digit (4) from the dividend, add it to 342, then carry on: 3424 / 423

Moving on to step 8:
3424 divided by 423 is 8 with a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 36278.0
Subtracting 3384 from 3424 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
If we divide 400 by 423, we get 0 and a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 36278.0
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 10:
423 can be fit into 4000 9 times, resulting in a remainder of 193.
Put 9 as the next digit of the answer. 
Result so far: 36278.09
If we take 3807 away from 4000, we end up with 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Moving on to step 11:
423 can be fit into 1930 4 times, resulting in a remainder of 238.
The number 4 becomes the next digit in our result. 
Result so far: 36278.094
If we take 1692 away from 1930, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 12:
The number 423 fits into 2380 5 times, leaving a remainder of 265.
The number 5 becomes the next digit in our result. 
Result so far: 36278.0945
The remainder is 265 after subtracting 2115 from 2380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

On to step 13:
The number 423 fits into 2650 6 times, leaving a remainder of 112.
Use 6 as the next digit of our solution. 
Result so far: 36278.09456
If we subtract 2538 from 2650, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 14:
When dividing 1120 by 423, we get 2 with a remainder of 274.
The number 2 becomes the next digit in our result. 
Result so far: 36278.094562
If we subtract 846 from 1120, we get 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Step 15:
When dividing 2740 by 423, we get 6 with a remainder of 202.
The next digit of our result is 6. 
Result so far: 36278.0945626
If we take 2538 away from 2740, we end up with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

On to step 16:
423 goes into 2020 4 times with a remainder of 328.
Put 4 as the next digit of the answer. 
Result so far: 36278.09456264
If we take 1692 away from 2020, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

In conclusion, the division gives 36278.09456264 with a balance of 3.28e-07.