Let's divide 1573538 by 578
The aim is to understand the frequency of 578 in 1573538.

Going ahead to step 1:
1 divided by 578 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 578

Moving on to step 2:
The number 578 fits into 15 0 times, leaving a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Include the next digit (7) from the dividend after 15, then repeat: 157 / 578

Let's proceed to step 3:
578 can be fit into 157 0 times, resulting in a remainder of 157.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 157, we get 157.
Take the next digit (3) from the dividend and append it to 157, then repeat: 1573 / 578

Advancing to step 4:
578 goes into 1573 2 times with a remainder of 417.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 1156 from 1573 leaves us with 417.
Include the next digit (5) from the dividend after 417, then repeat: 4175 / 578

Step 5:
The number 578 fits into 4175 7 times, leaving a remainder of 129.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Subtracting 4046 from 4175 leaves us with 129.
Append the next digit (3) from the dividend to 129 and continue with: 1293 / 578

Going ahead to step 6:
1293 divided by 578 is 2 with a remainder of 137.
Record the quotient 2 as the next digit in the result. 
Result so far: 272.0
Deduct 1156 from 1293 and we're left with 137.
Grab the next digit (8) from the dividend, add it to 137, then carry on: 1378 / 578

Let's proceed to step 7:
578 can be fit into 1378 2 times, resulting in a remainder of 222.
The next digit of our result is 2. 
Result so far: 2722.0
Subtract 1156 from 1378 to get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Moving on to step 8:
When dividing 2220 by 578, we get 3 with a remainder of 486.
Put 3 as the next digit of the answer. 
Result so far: 2722.3
The remainder is 486 after subtracting 1734 from 2220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Advancing to step 9:
578 goes into 4860 8 times with a remainder of 236.
Use 8 as the next digit of our solution. 
Result so far: 2722.38
Deduct 4624 from 4860 and we're left with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Advancing to step 10:
The number 578 fits into 2360 4 times, leaving a remainder of 48.
The next digit of our result is 4. 
Result so far: 2722.384
Deduct 2312 from 2360 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 11:
The number 578 fits into 480 0 times, leaving a remainder of 480.
Write down 0 as next digit of the result. 
Result so far: 2722.384
If we take 0 away from 480, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 12:
578 can be fit into 4800 8 times, resulting in a remainder of 176.
Use 8 as the next digit of our solution. 
Result so far: 2722.38408
Subtract 4624 from 4800 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

On to step 13:
The number 578 fits into 1760 3 times, leaving a remainder of 26.
Write down 3 as next digit of the result. 
Result so far: 2722.384083
Subtract 1734 from 1760 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 14:
The number 578 fits into 260 0 times, leaving a remainder of 260.
The next digit of our result is 0. 
Result so far: 2722.384083
Deduct 0 from 260 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 15:
578 can be fit into 2600 4 times, resulting in a remainder of 288.
Use 4 as the next digit of our solution. 
Result so far: 2722.38408304
Deduct 2312 from 2600 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

In conclusion, the division gives 2722.38408304 with a balance of 2.88e-07.