We're dividing 72505287 by 618 
The aim is to understand the frequency of 618 in 72505287.

Step 1:
The number 618 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 618

Let's proceed to step 2:
72 divided by 618 is 0 with a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Grab the next digit (5) from the dividend, add it to 72, then carry on: 725 / 618

On to step 3:
When dividing 725 by 618, we get 1 with a remainder of 107.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 618 away from 725, we end up with 107.
Grab the next digit (0) from the dividend, add it to 107, then carry on: 1070 / 618

Advancing to step 4:
1070 divided by 618 is 1 with a remainder of 452.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 618 from 1070 and we're left with 452.
Include the next digit (5) from the dividend after 452, then repeat: 4525 / 618

Let's proceed to step 5:
618 goes into 4525 7 times with a remainder of 199.
The number 7 becomes the next digit in our result. 
Result so far: 117.0
The remainder is 199 after subtracting 4326 from 4525.
Append the next digit (2) from the dividend to 199 and continue with: 1992 / 618

Moving on to step 6:
1992 divided by 618 is 3 with a remainder of 138.
Use 3 as the next digit of our solution. 
Result so far: 1173.0
The remainder is 138 after subtracting 1854 from 1992.
Take the next digit (8) from the dividend and append it to 138, then repeat: 1388 / 618

Step 7:
When dividing 1388 by 618, we get 2 with a remainder of 152.
Put 2 as the next digit of the answer. 
Result so far: 11732.0
If we subtract 1236 from 1388, we get 152.
Take the next digit (7) from the dividend and append it to 152, then repeat: 1527 / 618

Going ahead to step 8:
618 can be fit into 1527 2 times, resulting in a remainder of 291.
Write down 2 as next digit of the result. 
Result so far: 117322.0
Deduct 1236 from 1527 and we're left with 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Moving on to step 9:
When dividing 2910 by 618, we get 4 with a remainder of 438.
The next digit of our result is 4. 
Result so far: 117322.4
Deduct 2472 from 2910 and we're left with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Moving on to step 10:
618 goes into 4380 7 times with a remainder of 54.
The next digit of our result is 7. 
Result so far: 117322.47
Subtracting 4326 from 4380 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 11:
When dividing 540 by 618, we get 0 with a remainder of 540.
Write down 0 as next digit of the result. 
Result so far: 117322.47
If we take 0 away from 540, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Moving on to step 12:
618 can be fit into 5400 8 times, resulting in a remainder of 456.
Use 8 as the next digit of our solution. 
Result so far: 117322.4708
Subtracting 4944 from 5400 leaves us with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Moving on to step 13:
If we divide 4560 by 618, we get 7 and a remainder of 234.
Write down 7 as next digit of the result. 
Result so far: 117322.47087
Subtract 4326 from 4560 to get 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Step 14:
If we divide 2340 by 618, we get 3 and a remainder of 486.
Use 3 as the next digit of our solution. 
Result so far: 117322.470873
If we subtract 1854 from 2340, we get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Step 15:
618 can be fit into 4860 7 times, resulting in a remainder of 534.
Put 7 as the next digit of the answer. 
Result so far: 117322.4708737
Subtract 4326 from 4860 to get 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

On to step 16:
When dividing 5340 by 618, we get 8 with a remainder of 396.
The number 8 becomes the next digit in our result. 
Result so far: 117322.47087378
Deduct 4944 from 5340 and we're left with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

The final result is 117322.47087378 with a remainder of 3.96e-07.