30507487 ÷ 724 
The aim is to understand the frequency of 724 in 30507487.

Moving on to step 1:
3 divided by 724 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 724

Moving on to step 2:
30 divided by 724 is 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Fetch the next digit (5) from the dividend, attach it to 30 and continue: 305 / 724

Going ahead to step 3:
724 can be fit into 305 0 times, resulting in a remainder of 305.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 305 to get 305.
Grab the next digit (0) from the dividend, add it to 305, then carry on: 3050 / 724

Moving on to step 4:
When dividing 3050 by 724, we get 4 with a remainder of 154.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 2896 from 3050 to get 154.
Grab the next digit (7) from the dividend, add it to 154, then carry on: 1547 / 724

On to step 5:
If we divide 1547 by 724, we get 2 and a remainder of 99.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Subtracting 1448 from 1547 leaves us with 99.
Append the next digit (4) from the dividend to 99 and continue with: 994 / 724

Let's proceed to step 6:
When dividing 994 by 724, we get 1 with a remainder of 270.
Use 1 as the next digit of our solution. 
Result so far: 421.0
If we take 724 away from 994, we end up with 270.
Include the next digit (8) from the dividend after 270, then repeat: 2708 / 724

Let's proceed to step 7:
724 can be fit into 2708 3 times, resulting in a remainder of 536.
The number 3 becomes the next digit in our result. 
Result so far: 4213.0
The remainder is 536 after subtracting 2172 from 2708.
Include the next digit (7) from the dividend after 536, then repeat: 5367 / 724

Let's proceed to step 8:
If we divide 5367 by 724, we get 7 and a remainder of 299.
Use 7 as the next digit of our solution. 
Result so far: 42137.0
If we subtract 5068 from 5367, we get 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Let's proceed to step 9:
724 can be fit into 2990 4 times, resulting in a remainder of 94.
Put 4 as the next digit of the answer. 
Result so far: 42137.4
If we subtract 2896 from 2990, we get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Let's proceed to step 10:
When dividing 940 by 724, we get 1 with a remainder of 216.
Use 1 as the next digit of our solution. 
Result so far: 42137.41
Deduct 724 from 940 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 11:
When dividing 2160 by 724, we get 2 with a remainder of 712.
The number 2 becomes the next digit in our result. 
Result so far: 42137.412
Subtracting 1448 from 2160 leaves us with 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

On to step 12:
If we divide 7120 by 724, we get 9 and a remainder of 604.
The next digit of our result is 9. 
Result so far: 42137.4129
If we subtract 6516 from 7120, we get 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

On to step 13:
The number 724 fits into 6040 8 times, leaving a remainder of 248.
Record the quotient 8 as the next digit in the result. 
Result so far: 42137.41298
The remainder is 248 after subtracting 5792 from 6040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Let's proceed to step 14:
The number 724 fits into 2480 3 times, leaving a remainder of 308.
Write down 3 as next digit of the result. 
Result so far: 42137.412983
Deduct 2172 from 2480 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 15:
3080 divided by 724 is 4 with a remainder of 184.
Use 4 as the next digit of our solution. 
Result so far: 42137.4129834
Subtracting 2896 from 3080 leaves us with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Moving on to step 16:
The number 724 fits into 1840 2 times, leaving a remainder of 392.
Record the quotient 2 as the next digit in the result. 
Result so far: 42137.41298342
Subtracting 1448 from 1840 leaves us with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

After the division, we end up with 42137.41298342 and a remainder of 3.92e-07.