We're dividing 28570405 by 918 
The aim is to understand the frequency of 918 in 28570405.

On to step 1:
If we divide 2 by 918, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
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 / 918

Step 2:
28 divided by 918 is 0 with a remainder of 28.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Bring next digit (5) of the dividend behind the 28 and repeat the process: 285 / 918

On to step 3:
285 divided by 918 is 0 with a remainder of 285.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 285 after subtracting 0 from 285.
Append the next digit (7) from the dividend to 285 and continue with: 2857 / 918

Moving on to step 4:
918 can be fit into 2857 3 times, resulting in a remainder of 103.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 2754 from 2857 and we're left with 103.
Take the next digit (0) from the dividend and append it to 103, then repeat: 1030 / 918

On to step 5:
918 goes into 1030 1 times with a remainder of 112.
Use 1 as the next digit of our solution. 
Result so far: 31.0
Subtracting 918 from 1030 leaves us with 112.
Grab the next digit (4) from the dividend, add it to 112, then carry on: 1124 / 918

Going ahead to step 6:
If we divide 1124 by 918, we get 1 and a remainder of 206.
Put 1 as the next digit of the answer. 
Result so far: 311.0
Subtracting 918 from 1124 leaves us with 206.
Take the next digit (0) from the dividend and append it to 206, then repeat: 2060 / 918

On to step 7:
918 goes into 2060 2 times with a remainder of 224.
The number 2 becomes the next digit in our result. 
Result so far: 3112.0
Deduct 1836 from 2060 and we're left with 224.
Fetch the next digit (5) from the dividend, attach it to 224 and continue: 2245 / 918

Advancing to step 8:
918 goes into 2245 2 times with a remainder of 409.
Write down 2 as next digit of the result. 
Result so far: 31122.0
If we subtract 1836 from 2245, we get 409.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4090, and continue the process.

Let's proceed to step 9:
The number 918 fits into 4090 4 times, leaving a remainder of 418.
The next digit of our result is 4. 
Result so far: 31122.4
The remainder is 418 after subtracting 3672 from 4090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

On to step 10:
918 goes into 4180 4 times with a remainder of 508.
The next digit of our result is 4. 
Result so far: 31122.44
Subtract 3672 from 4180 to get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

The final outcome is 31122.44, with a leftover of 0.508.