18520868 ÷ 456 
The aim is to understand the frequency of 456 in 18520868.

Let's proceed to step 1:
456 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 456

Let's proceed to step 2:
456 can be fit into 18 0 times, resulting in a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 456

Let's proceed to step 3:
The number 456 fits into 185 0 times, leaving a remainder of 185.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 185, we end up with 185.
Include the next digit (2) from the dividend after 185, then repeat: 1852 / 456

Moving on to step 4:
456 can be fit into 1852 4 times, resulting in a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 1824 from 1852, we get 28.
Append the next digit (0) from the dividend to 28 and continue with: 280 / 456

Advancing to step 5:
280 divided by 456 is 0 with a remainder of 280.
The number 0 becomes the next digit in our result. 
Result so far: 40.0
If we take 0 away from 280, we end up with 280.
Include the next digit (8) from the dividend after 280, then repeat: 2808 / 456

On to step 6:
2808 divided by 456 is 6 with a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 406.0
If we take 2736 away from 2808, we end up with 72.
Fetch the next digit (6) from the dividend, attach it to 72 and continue: 726 / 456

On to step 7:
The number 456 fits into 726 1 times, leaving a remainder of 270.
The number 1 becomes the next digit in our result. 
Result so far: 4061.0
If we subtract 456 from 726, we get 270.
Append the next digit (8) from the dividend to 270 and continue with: 2708 / 456

Advancing to step 8:
If we divide 2708 by 456, we get 5 and a remainder of 428.
Use 5 as the next digit of our solution. 
Result so far: 40615.0
If we take 2280 away from 2708, we end up with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

On to step 9:
If we divide 4280 by 456, we get 9 and a remainder of 176.
Write down 9 as next digit of the result. 
Result so far: 40615.9
If we take 4104 away from 4280, we end up with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Going ahead to step 10:
1760 divided by 456 is 3 with a remainder of 392.
Record the quotient 3 as the next digit in the result. 
Result so far: 40615.93
Deduct 1368 from 1760 and we're left 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.

Advancing to step 11:
456 can be fit into 3920 8 times, resulting in a remainder of 272.
Write down 8 as next digit of the result. 
Result so far: 40615.938
Deduct 3648 from 3920 and we're left with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 12:
If we divide 2720 by 456, we get 5 and a remainder of 440.
The number 5 becomes the next digit in our result. 
Result so far: 40615.9385
If we take 2280 away from 2720, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 13:
The number 456 fits into 4400 9 times, leaving a remainder of 296.
The number 9 becomes the next digit in our result. 
Result so far: 40615.93859
Deduct 4104 from 4400 and we're left with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Moving on to step 14:
If we divide 2960 by 456, we get 6 and a remainder of 224.
Put 6 as the next digit of the answer. 
Result so far: 40615.938596
Subtract 2736 from 2960 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Step 15:
If we divide 2240 by 456, we get 4 and a remainder of 416.
Use 4 as the next digit of our solution. 
Result so far: 40615.9385964
Subtracting 1824 from 2240 leaves us with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Advancing to step 16:
4160 divided by 456 is 9 with a remainder of 56.
Write down 9 as next digit of the result. 
Result so far: 40615.93859649
Subtract 4104 from 4160 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Our division results in 40615.93859649 with a remaining 5.6e-08.