We look at the division of 18305464 by 725 
The aim is to understand the frequency of 725 in 18305464.

Moving on to step 1:
When dividing 1 by 725, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 725

Advancing to step 2:
The number 725 fits into 18 0 times, leaving a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 725

On to step 3:
183 divided by 725 is 0 with a remainder of 183.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 183 to get 183.
Bring next digit (0) of the dividend behind the 183 and repeat the process: 1830 / 725

Step 4:
725 can be fit into 1830 2 times, resulting in a remainder of 380.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 1450 from 1830, we get 380.
Grab the next digit (5) from the dividend, add it to 380, then carry on: 3805 / 725

Going ahead to step 5:
725 can be fit into 3805 5 times, resulting in a remainder of 180.
Put 5 as the next digit of the answer. 
Result so far: 25.0
If we take 3625 away from 3805, we end up with 180.
Include the next digit (4) from the dividend after 180, then repeat: 1804 / 725

Step 6:
When dividing 1804 by 725, we get 2 with a remainder of 354.
Write down 2 as next digit of the result. 
Result so far: 252.0
Deduct 1450 from 1804 and we're left with 354.
Bring next digit (6) of the dividend behind the 354 and repeat the process: 3546 / 725

On to step 7:
725 goes into 3546 4 times with a remainder of 646.
Put 4 as the next digit of the answer. 
Result so far: 2524.0
If we take 2900 away from 3546, we end up with 646.
Include the next digit (4) from the dividend after 646, then repeat: 6464 / 725

Going ahead to step 8:
725 goes into 6464 8 times with a remainder of 664.
The next digit of our result is 8. 
Result so far: 25248.0
If we take 5800 away from 6464, we end up with 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Let's proceed to step 9:
The number 725 fits into 6640 9 times, leaving a remainder of 115.
Put 9 as the next digit of the answer. 
Result so far: 25248.9
Deduct 6525 from 6640 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Step 10:
725 can be fit into 1150 1 times, resulting in a remainder of 425.
The number 1 becomes the next digit in our result. 
Result so far: 25248.91
If we take 725 away from 1150, we end up with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Going ahead to step 11:
4250 divided by 725 is 5 with a remainder of 625.
Write down 5 as next digit of the result. 
Result so far: 25248.915
Deduct 3625 from 4250 and we're left with 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Going ahead to step 12:
If we divide 6250 by 725, we get 8 and a remainder of 450.
The number 8 becomes the next digit in our result. 
Result so far: 25248.9158
If we subtract 5800 from 6250, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 13:
4500 divided by 725 is 6 with a remainder of 150.
The number 6 becomes the next digit in our result. 
Result so far: 25248.91586
If we subtract 4350 from 4500, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 14:
If we divide 1500 by 725, we get 2 and a remainder of 50.
Put 2 as the next digit of the answer. 
Result so far: 25248.915862
Subtracting 1450 from 1500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 15:
If we divide 500 by 725, we get 0 and a remainder of 500.
Put 0 as the next digit of the answer. 
Result so far: 25248.915862
Subtract 0 from 500 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Advancing to step 16:
725 goes into 5000 6 times with a remainder of 650.
Write down 6 as next digit of the result. 
Result so far: 25248.91586206
Subtract 4350 from 5000 to get 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

After the division, we end up with 25248.91586206 and a remainder of 6.5e-07.