Let's divide 21270222 by 423
The aim is to understand the frequency of 423 in 21270222.

Advancing to step 1:
2 divided by 423 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 423

Let's proceed to step 2:
21 divided by 423 is 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Grab the next digit (2) from the dividend, add it to 21, then carry on: 212 / 423

On to step 3:
212 divided by 423 is 0 with a remainder of 212.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 212 leaves us with 212.
Include the next digit (7) from the dividend after 212, then repeat: 2127 / 423

On to step 4:
When dividing 2127 by 423, we get 5 with a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 2115 from 2127 leaves us with 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 423

Let's proceed to step 5:
423 goes into 120 0 times with a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 50.0
Subtract 0 from 120 to get 120.
Bring next digit (2) of the dividend behind the 120 and repeat the process: 1202 / 423

Advancing to step 6:
423 can be fit into 1202 2 times, resulting in a remainder of 356.
The next digit of our result is 2. 
Result so far: 502.0
Deduct 846 from 1202 and we're left with 356.
Include the next digit (2) from the dividend after 356, then repeat: 3562 / 423

Step 7:
If we divide 3562 by 423, we get 8 and a remainder of 178.
The number 8 becomes the next digit in our result. 
Result so far: 5028.0
Deduct 3384 from 3562 and we're left with 178.
Append the next digit (2) from the dividend to 178 and continue with: 1782 / 423

Step 8:
1782 divided by 423 is 4 with a remainder of 90.
Put 4 as the next digit of the answer. 
Result so far: 50284.0
If we take 1692 away from 1782, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 9:
423 goes into 900 2 times with a remainder of 54.
Write down 2 as next digit of the result. 
Result so far: 50284.2
The remainder is 54 after subtracting 846 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 10:
540 divided by 423 is 1 with a remainder of 117.
Put 1 as the next digit of the answer. 
Result so far: 50284.21
The remainder is 117 after subtracting 423 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Moving on to step 11:
If we divide 1170 by 423, we get 2 and a remainder of 324.
Put 2 as the next digit of the answer. 
Result so far: 50284.212
If we take 846 away from 1170, we end up with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Advancing to step 12:
423 can be fit into 3240 7 times, resulting in a remainder of 279.
Use 7 as the next digit of our solution. 
Result so far: 50284.2127
Subtract 2961 from 3240 to get 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Moving on to step 13:
When dividing 2790 by 423, we get 6 with a remainder of 252.
Use 6 as the next digit of our solution. 
Result so far: 50284.21276
Subtract 2538 from 2790 to get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Advancing to step 14:
The number 423 fits into 2520 5 times, leaving a remainder of 405.
Record the quotient 5 as the next digit in the result. 
Result so far: 50284.212765
Subtract 2115 from 2520 to get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Moving on to step 15:
423 can be fit into 4050 9 times, resulting in a remainder of 243.
The number 9 becomes the next digit in our result. 
Result so far: 50284.2127659
The remainder is 243 after subtracting 3807 from 4050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Let's proceed to step 16:
423 can be fit into 2430 5 times, resulting in a remainder of 315.
The next digit of our result is 5. 
Result so far: 50284.21276595
Subtract 2115 from 2430 to get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

The quotient of the division is 50284.21276595, and the remainder is 3.15e-07.