Let's divide 21365199 by 623
The aim is to understand the frequency of 623 in 21365199.

On to step 1:
623 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 623

On to step 2:
623 goes into 21 0 times with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Append the next digit (3) from the dividend to 21 and continue with: 213 / 623

Moving on to step 3:
623 goes into 213 0 times with a remainder of 213.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 213 leaves us with 213.
Grab the next digit (6) from the dividend, add it to 213, then carry on: 2136 / 623

Moving on to step 4:
The number 623 fits into 2136 3 times, leaving a remainder of 267.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 1869 from 2136 and we're left with 267.
Grab the next digit (5) from the dividend, add it to 267, then carry on: 2675 / 623

Advancing to step 5:
2675 divided by 623 is 4 with a remainder of 183.
Write down 4 as next digit of the result. 
Result so far: 34.0
If we subtract 2492 from 2675, we get 183.
Take the next digit (1) from the dividend and append it to 183, then repeat: 1831 / 623

Going ahead to step 6:
The number 623 fits into 1831 2 times, leaving a remainder of 585.
Use 2 as the next digit of our solution. 
Result so far: 342.0
Deduct 1246 from 1831 and we're left with 585.
Grab the next digit (9) from the dividend, add it to 585, then carry on: 5859 / 623

Step 7:
When dividing 5859 by 623, we get 9 with a remainder of 252.
The number 9 becomes the next digit in our result. 
Result so far: 3429.0
The remainder is 252 after subtracting 5607 from 5859.
Include the next digit (9) from the dividend after 252, then repeat: 2529 / 623

On to step 8:
When dividing 2529 by 623, we get 4 with a remainder of 37.
The number 4 becomes the next digit in our result. 
Result so far: 34294.0
If we subtract 2492 from 2529, we 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 9:
623 can be fit into 370 0 times, resulting in a remainder of 370.
Use 0 as the next digit of our solution. 
Result so far: 34294.0
If we take 0 away from 370, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 10:
When dividing 3700 by 623, we get 5 with a remainder of 585.
Use 5 as the next digit of our solution. 
Result so far: 34294.05
Deduct 3115 from 3700 and we're left with 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Advancing to step 11:
5850 divided by 623 is 9 with a remainder of 243.
The number 9 becomes the next digit in our result. 
Result so far: 34294.059
If we take 5607 away from 5850, we end up with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

On to step 12:
623 goes into 2430 3 times with a remainder of 561.
Put 3 as the next digit of the answer. 
Result so far: 34294.0593
Deduct 1869 from 2430 and we're left with 561.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5610, and continue the process.

Let's proceed to step 13:
5610 divided by 623 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 34294.05939
If we subtract 5607 from 5610, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 14:
30 divided by 623 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 34294.05939
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 15:
300 divided by 623 is 0 with a remainder of 300.
The next digit of our result is 0. 
Result so far: 34294.05939
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

After the division, we end up with 34294.05939 and a remainder of 3e-06.