27521840 divided by 253 
The aim is to understand the frequency of 253 in 27521840.

Going ahead to step 1:
If we divide 2 by 253, 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 (7) from the dividend, attach it to 2 and continue: 27 / 253

Step 2:
27 divided by 253 is 0 with a remainder of 27.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 27, we end up with 27.
Append the next digit (5) from the dividend to 27 and continue with: 275 / 253

On to step 3:
253 goes into 275 1 times with a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 253 away from 275, we end up with 22.
Bring next digit (2) of the dividend behind the 22 and repeat the process: 222 / 253

Going ahead to step 4:
When dividing 222 by 253, we get 0 with a remainder of 222.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 222, we end up with 222.
Append the next digit (1) from the dividend to 222 and continue with: 2221 / 253

On to step 5:
When dividing 2221 by 253, we get 8 with a remainder of 197.
The next digit of our result is 8. 
Result so far: 108.0
The remainder is 197 after subtracting 2024 from 2221.
Include the next digit (8) from the dividend after 197, then repeat: 1978 / 253

Going ahead to step 6:
253 goes into 1978 7 times with a remainder of 207.
Record the quotient 7 as the next digit in the result. 
Result so far: 1087.0
If we take 1771 away from 1978, we end up with 207.
Fetch the next digit (4) from the dividend, attach it to 207 and continue: 2074 / 253

Moving on to step 7:
If we divide 2074 by 253, we get 8 and a remainder of 50.
The number 8 becomes the next digit in our result. 
Result so far: 10878.0
The remainder is 50 after subtracting 2024 from 2074.
Grab the next digit (0) from the dividend, add it to 50, then carry on: 500 / 253

Moving on to step 8:
If we divide 500 by 253, we get 1 and a remainder of 247.
Put 1 as the next digit of the answer. 
Result so far: 108781.0
Deduct 253 from 500 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Moving on to step 9:
The number 253 fits into 2470 9 times, leaving a remainder of 193.
The number 9 becomes the next digit in our result. 
Result so far: 108781.9
Subtract 2277 from 2470 to get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Moving on to step 10:
If we divide 1930 by 253, we get 7 and a remainder of 159.
Use 7 as the next digit of our solution. 
Result so far: 108781.97
If we take 1771 away from 1930, we end up with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Moving on to step 11:
If we divide 1590 by 253, we get 6 and a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 108781.976
Deduct 1518 from 1590 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 12:
253 goes into 720 2 times with a remainder of 214.
Put 2 as the next digit of the answer. 
Result so far: 108781.9762
If we subtract 506 from 720, we get 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Advancing to step 13:
If we divide 2140 by 253, we get 8 and a remainder of 116.
Use 8 as the next digit of our solution. 
Result so far: 108781.97628
Subtract 2024 from 2140 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Step 14:
1160 divided by 253 is 4 with a remainder of 148.
Use 4 as the next digit of our solution. 
Result so far: 108781.976284
Subtracting 1012 from 1160 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 15:
If we divide 1480 by 253, we get 5 and a remainder of 215.
Write down 5 as next digit of the result. 
Result so far: 108781.9762845
Subtract 1265 from 1480 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 16:
The number 253 fits into 2150 8 times, leaving a remainder of 126.
The number 8 becomes the next digit in our result. 
Result so far: 108781.97628458
Subtract 2024 from 2150 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

After the division, we end up with 108781.97628458 and a remainder of 1.26e-07.