28165911 divided by 624 
The aim is to understand the frequency of 624 in 28165911.

Advancing to step 1:
624 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 624

Advancing to step 2:
When dividing 28 by 624, we get 0 with a remainder of 28.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Take the next digit (1) from the dividend and append it to 28, then repeat: 281 / 624

Going ahead to step 3:
When dividing 281 by 624, we get 0 with a remainder of 281.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 281 to get 281.
Grab the next digit (6) from the dividend, add it to 281, then carry on: 2816 / 624

Moving on to step 4:
The number 624 fits into 2816 4 times, leaving a remainder of 320.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 2496 from 2816 leaves us with 320.
Append the next digit (5) from the dividend to 320 and continue with: 3205 / 624

Advancing to step 5:
3205 divided by 624 is 5 with a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 45.0
If we subtract 3120 from 3205, we get 85.
Append the next digit (9) from the dividend to 85 and continue with: 859 / 624

On to step 6:
The number 624 fits into 859 1 times, leaving a remainder of 235.
The number 1 becomes the next digit in our result. 
Result so far: 451.0
If we take 624 away from 859, we end up with 235.
Append the next digit (1) from the dividend to 235 and continue with: 2351 / 624

Going ahead to step 7:
If we divide 2351 by 624, we get 3 and a remainder of 479.
The next digit of our result is 3. 
Result so far: 4513.0
Subtract 1872 from 2351 to get 479.
Fetch the next digit (1) from the dividend, attach it to 479 and continue: 4791 / 624

Step 8:
4791 divided by 624 is 7 with a remainder of 423.
Put 7 as the next digit of the answer. 
Result so far: 45137.0
Deduct 4368 from 4791 and we're left with 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

Step 9:
The number 624 fits into 4230 6 times, leaving a remainder of 486.
Record the quotient 6 as the next digit in the result. 
Result so far: 45137.6
The remainder is 486 after subtracting 3744 from 4230.
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 10:
If we divide 4860 by 624, we get 7 and a remainder of 492.
The number 7 becomes the next digit in our result. 
Result so far: 45137.67
The remainder is 492 after subtracting 4368 from 4860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Step 11:
624 goes into 4920 7 times with a remainder of 552.
Record the quotient 7 as the next digit in the result. 
Result so far: 45137.677
If we subtract 4368 from 4920, we get 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

The final result is 45137.677 with a remainder of 0.0552.