2454945 divided by 280 
The aim is to understand the frequency of 280 in 2454945.

On to step 1:
2 divided by 280 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 280

Step 2:
280 goes into 24 0 times with a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 24, we get 24.
Include the next digit (5) from the dividend after 24, then repeat: 245 / 280

Step 3:
The number 280 fits into 245 0 times, leaving a remainder of 245.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 245 and we're left with 245.
Append the next digit (4) from the dividend to 245 and continue with: 2454 / 280

On to step 4:
If we divide 2454 by 280, we get 8 and a remainder of 214.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 2240 from 2454 and we're left with 214.
Fetch the next digit (9) from the dividend, attach it to 214 and continue: 2149 / 280

Step 5:
280 goes into 2149 7 times with a remainder of 189.
Put 7 as the next digit of the answer. 
Result so far: 87.0
If we subtract 1960 from 2149, we get 189.
Grab the next digit (4) from the dividend, add it to 189, then carry on: 1894 / 280

Advancing to step 6:
280 goes into 1894 6 times with a remainder of 214.
Use 6 as the next digit of our solution. 
Result so far: 876.0
If we subtract 1680 from 1894, we get 214.
Take the next digit (5) from the dividend and append it to 214, then repeat: 2145 / 280

Going ahead to step 7:
2145 divided by 280 is 7 with a remainder of 185.
The next digit of our result is 7. 
Result so far: 8767.0
Deduct 1960 from 2145 and we're left with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Step 8:
If we divide 1850 by 280, we get 6 and a remainder of 170.
Write down 6 as next digit of the result. 
Result so far: 8767.6
If we take 1680 away from 1850, we end up with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 9:
280 goes into 1700 6 times with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 8767.66
Subtracting 1680 from 1700 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 8767.66, with a leftover of 0.02.