3996876 divided by 573 
The aim is to understand the frequency of 573 in 3996876.

Advancing to step 1:
3 divided by 573 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 573

Advancing to step 2:
When dividing 39 by 573, we get 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Fetch the next digit (9) from the dividend, attach it to 39 and continue: 399 / 573

Let's proceed to step 3:
If we divide 399 by 573, we get 0 and a remainder of 399.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 399 and we're left with 399.
Bring next digit (6) of the dividend behind the 399 and repeat the process: 3996 / 573

Going ahead to step 4:
573 goes into 3996 6 times with a remainder of 558.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtracting 3438 from 3996 leaves us with 558.
Include the next digit (8) from the dividend after 558, then repeat: 5588 / 573

Step 5:
When dividing 5588 by 573, we get 9 with a remainder of 431.
Use 9 as the next digit of our solution. 
Result so far: 69.0
Subtract 5157 from 5588 to get 431.
Take the next digit (7) from the dividend and append it to 431, then repeat: 4317 / 573

Moving on to step 6:
573 can be fit into 4317 7 times, resulting in a remainder of 306.
Put 7 as the next digit of the answer. 
Result so far: 697.0
If we subtract 4011 from 4317, we get 306.
Bring next digit (6) of the dividend behind the 306 and repeat the process: 3066 / 573

Step 7:
573 can be fit into 3066 5 times, resulting in a remainder of 201.
The next digit of our result is 5. 
Result so far: 6975.0
Subtract 2865 from 3066 to get 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Advancing to step 8:
573 can be fit into 2010 3 times, resulting in a remainder of 291.
The number 3 becomes the next digit in our result. 
Result so far: 6975.3
The remainder is 291 after subtracting 1719 from 2010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Step 9:
573 goes into 2910 5 times with a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 6975.35
The remainder is 45 after subtracting 2865 from 2910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 10:
The number 573 fits into 450 0 times, leaving a remainder of 450.
Write down 0 as next digit of the result. 
Result so far: 6975.35
Deduct 0 from 450 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 11:
If we divide 4500 by 573, we get 7 and a remainder of 489.
Put 7 as the next digit of the answer. 
Result so far: 6975.3507
The remainder is 489 after subtracting 4011 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Moving on to step 12:
If we divide 4890 by 573, we get 8 and a remainder of 306.
Write down 8 as next digit of the result. 
Result so far: 6975.35078
If we take 4584 away from 4890, we end up with 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Let's proceed to step 13:
If we divide 3060 by 573, we get 5 and a remainder of 195.
The next digit of our result is 5. 
Result so far: 6975.350785
Subtracting 2865 from 3060 leaves us with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Let's proceed to step 14:
The number 573 fits into 1950 3 times, leaving a remainder of 231.
The number 3 becomes the next digit in our result. 
Result so far: 6975.3507853
If we subtract 1719 from 1950, we get 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Let's proceed to step 15:
The number 573 fits into 2310 4 times, leaving a remainder of 18.
The next digit of our result is 4. 
Result so far: 6975.35078534
Subtract 2292 from 2310 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 6975.35078534 and a remainder of 1.8e-08.