45172288 divided by 248 
The aim is to understand the frequency of 248 in 45172288.

Advancing to step 1:
If we divide 4 by 248, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 248

On to step 2:
45 divided by 248 is 0 with a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Append the next digit (1) from the dividend to 45 and continue with: 451 / 248

On to step 3:
When dividing 451 by 248, we get 1 with a remainder of 203.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 248 from 451 and we're left with 203.
Fetch the next digit (7) from the dividend, attach it to 203 and continue: 2037 / 248

Moving on to step 4:
The number 248 fits into 2037 8 times, leaving a remainder of 53.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
If we take 1984 away from 2037, we end up with 53.
Bring next digit (2) of the dividend behind the 53 and repeat the process: 532 / 248

Step 5:
The number 248 fits into 532 2 times, leaving a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 182.0
Subtracting 496 from 532 leaves us with 36.
Bring next digit (2) of the dividend behind the 36 and repeat the process: 362 / 248

Moving on to step 6:
362 divided by 248 is 1 with a remainder of 114.
Use 1 as the next digit of our solution. 
Result so far: 1821.0
Subtracting 248 from 362 leaves us with 114.
Append the next digit (8) from the dividend to 114 and continue with: 1148 / 248

On to step 7:
If we divide 1148 by 248, we get 4 and a remainder of 156.
The next digit of our result is 4. 
Result so far: 18214.0
The remainder is 156 after subtracting 992 from 1148.
Append the next digit (8) from the dividend to 156 and continue with: 1568 / 248

On to step 8:
If we divide 1568 by 248, we get 6 and a remainder of 80.
Write down 6 as next digit of the result. 
Result so far: 182146.0
Subtract 1488 from 1568 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 9:
If we divide 800 by 248, we get 3 and a remainder of 56.
The next digit of our result is 3. 
Result so far: 182146.3
If we subtract 744 from 800, we 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.

Advancing to step 10:
560 divided by 248 is 2 with a remainder of 64.
The next digit of our result is 2. 
Result so far: 182146.32
If we take 496 away from 560, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 11:
248 goes into 640 2 times with a remainder of 144.
Record the quotient 2 as the next digit in the result. 
Result so far: 182146.322
Subtract 496 from 640 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.

The final outcome is 182146.322, with a leftover of 0.0144.