Let's divide 21501048 by 523
The aim is to understand the frequency of 523 in 21501048.

On to step 1:
The number 523 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 523

Step 2:
523 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 523

Step 3:
215 divided by 523 is 0 with a remainder of 215.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 215 leaves us with 215.
Append the next digit (0) from the dividend to 215 and continue with: 2150 / 523

Advancing to step 4:
When dividing 2150 by 523, we get 4 with a remainder of 58.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 2092 from 2150 leaves us with 58.
Fetch the next digit (1) from the dividend, attach it to 58 and continue: 581 / 523

Step 5:
523 can be fit into 581 1 times, resulting in a remainder of 58.
Record the quotient 1 as the next digit in the result. 
Result so far: 41.0
If we take 523 away from 581, we end up with 58.
Bring next digit (0) of the dividend behind the 58 and repeat the process: 580 / 523

Moving on to step 6:
If we divide 580 by 523, we get 1 and a remainder of 57.
Record the quotient 1 as the next digit in the result. 
Result so far: 411.0
The remainder is 57 after subtracting 523 from 580.
Take the next digit (4) from the dividend and append it to 57, then repeat: 574 / 523

Going ahead to step 7:
The number 523 fits into 574 1 times, leaving a remainder of 51.
Write down 1 as next digit of the result. 
Result so far: 4111.0
If we take 523 away from 574, we end up with 51.
Take the next digit (8) from the dividend and append it to 51, then repeat: 518 / 523

Advancing to step 8:
523 goes into 518 0 times with a remainder of 518.
The next digit of our result is 0. 
Result so far: 41110.0
If we subtract 0 from 518, we get 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Let's proceed to step 9:
If we divide 5180 by 523, we get 9 and a remainder of 473.
Write down 9 as next digit of the result. 
Result so far: 41110.9
Subtracting 4707 from 5180 leaves us with 473.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4730, and continue the process.

Advancing to step 10:
If we divide 4730 by 523, we get 9 and a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 41110.99
The remainder is 23 after subtracting 4707 from 4730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

In conclusion, the division gives 41110.99 with a balance of 0.023.