28643156 divided by 556 
The aim is to understand the frequency of 556 in 28643156.

On to step 1:
556 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
Subtract 0 from 2 to get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 556

Let's proceed to step 2:
When dividing 28 by 556, we get 0 with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 28 leaves us with 28.
Grab the next digit (6) from the dividend, add it to 28, then carry on: 286 / 556

Going ahead to step 3:
If we divide 286 by 556, we get 0 and a remainder of 286.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 286 and we're left with 286.
Include the next digit (4) from the dividend after 286, then repeat: 2864 / 556

Advancing to step 4:
If we divide 2864 by 556, we get 5 and a remainder of 84.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 2780 from 2864 to get 84.
Include the next digit (3) from the dividend after 84, then repeat: 843 / 556

Advancing to step 5:
556 goes into 843 1 times with a remainder of 287.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtract 556 from 843 to get 287.
Take the next digit (1) from the dividend and append it to 287, then repeat: 2871 / 556

Going ahead to step 6:
2871 divided by 556 is 5 with a remainder of 91.
Put 5 as the next digit of the answer. 
Result so far: 515.0
Deduct 2780 from 2871 and we're left with 91.
Fetch the next digit (5) from the dividend, attach it to 91 and continue: 915 / 556

On to step 7:
The number 556 fits into 915 1 times, leaving a remainder of 359.
Record the quotient 1 as the next digit in the result. 
Result so far: 5151.0
If we subtract 556 from 915, we get 359.
Bring next digit (6) of the dividend behind the 359 and repeat the process: 3596 / 556

Advancing to step 8:
If we divide 3596 by 556, we get 6 and a remainder of 260.
Write down 6 as next digit of the result. 
Result so far: 51516.0
If we take 3336 away from 3596, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 9:
The number 556 fits into 2600 4 times, leaving a remainder of 376.
Use 4 as the next digit of our solution. 
Result so far: 51516.4
Subtract 2224 from 2600 to get 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Advancing to step 10:
3760 divided by 556 is 6 with a remainder of 424.
The next digit of our result is 6. 
Result so far: 51516.46
The remainder is 424 after subtracting 3336 from 3760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Moving on to step 11:
556 goes into 4240 7 times with a remainder of 348.
The number 7 becomes the next digit in our result. 
Result so far: 51516.467
If we subtract 3892 from 4240, we get 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Advancing to step 12:
556 can be fit into 3480 6 times, resulting in a remainder of 144.
Put 6 as the next digit of the answer. 
Result so far: 51516.4676
Subtract 3336 from 3480 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 13:
1440 divided by 556 is 2 with a remainder of 328.
The next digit of our result is 2. 
Result so far: 51516.46762
If we subtract 1112 from 1440, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Advancing to step 14:
When dividing 3280 by 556, we get 5 with a remainder of 500.
Put 5 as the next digit of the answer. 
Result so far: 51516.467625
Deduct 2780 from 3280 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Let's proceed to step 15:
556 goes into 5000 8 times with a remainder of 552.
Use 8 as the next digit of our solution. 
Result so far: 51516.4676258
The remainder is 552 after subtracting 4448 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

On to step 16:
5520 divided by 556 is 9 with a remainder of 516.
Record the quotient 9 as the next digit in the result. 
Result so far: 51516.46762589
The remainder is 516 after subtracting 5004 from 5520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

The final outcome is 51516.46762589, with a leftover of 5.16e-07.