We divide 21510872 by 593
The aim is to understand the frequency of 593 in 21510872.

Advancing to step 1:
If we divide 2 by 593, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 593

On to step 2:
If we divide 21 by 593, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 593

On to step 3:
215 divided by 593 is 0 with a remainder of 215.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 215, we get 215.
Append the next digit (1) from the dividend to 215 and continue with: 2151 / 593

Step 4:
593 can be fit into 2151 3 times, resulting in a remainder of 372.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 1779 from 2151 leaves us with 372.
Include the next digit (0) from the dividend after 372, then repeat: 3720 / 593

Let's proceed to step 5:
593 can be fit into 3720 6 times, resulting in a remainder of 162.
Use 6 as the next digit of our solution. 
Result so far: 36.0
If we subtract 3558 from 3720, we get 162.
Include the next digit (8) from the dividend after 162, then repeat: 1628 / 593

On to step 6:
If we divide 1628 by 593, we get 2 and a remainder of 442.
Put 2 as the next digit of the answer. 
Result so far: 362.0
Deduct 1186 from 1628 and we're left with 442.
Append the next digit (7) from the dividend to 442 and continue with: 4427 / 593

Advancing to step 7:
If we divide 4427 by 593, we get 7 and a remainder of 276.
Use 7 as the next digit of our solution. 
Result so far: 3627.0
The remainder is 276 after subtracting 4151 from 4427.
Take the next digit (2) from the dividend and append it to 276, then repeat: 2762 / 593

On to step 8:
When dividing 2762 by 593, we get 4 with a remainder of 390.
Use 4 as the next digit of our solution. 
Result so far: 36274.0
If we take 2372 away from 2762, we end up with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Moving on to step 9:
3900 divided by 593 is 6 with a remainder of 342.
Put 6 as the next digit of the answer. 
Result so far: 36274.6
If we take 3558 away from 3900, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Advancing to step 10:
The number 593 fits into 3420 5 times, leaving a remainder of 455.
The next digit of our result is 5. 
Result so far: 36274.65
Subtracting 2965 from 3420 leaves us with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Advancing to step 11:
4550 divided by 593 is 7 with a remainder of 399.
Use 7 as the next digit of our solution. 
Result so far: 36274.657
If we subtract 4151 from 4550, we get 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Let's proceed to step 12:
593 goes into 3990 6 times with a remainder of 432.
Record the quotient 6 as the next digit in the result. 
Result so far: 36274.6576
Deduct 3558 from 3990 and we're left with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Advancing to step 13:
The number 593 fits into 4320 7 times, leaving a remainder of 169.
Put 7 as the next digit of the answer. 
Result so far: 36274.65767
Deduct 4151 from 4320 and we're left with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Let's proceed to step 14:
The number 593 fits into 1690 2 times, leaving a remainder of 504.
Put 2 as the next digit of the answer. 
Result so far: 36274.657672
Subtracting 1186 from 1690 leaves us with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Step 15:
5040 divided by 593 is 8 with a remainder of 296.
Record the quotient 8 as the next digit in the result. 
Result so far: 36274.6576728
The remainder is 296 after subtracting 4744 from 5040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 16:
593 goes into 2960 4 times with a remainder of 588.
The next digit of our result is 4. 
Result so far: 36274.65767284
If we subtract 2372 from 2960, we get 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Our division results in 36274.65767284 with a remaining 5.88e-07.