We look at the division of 55493712 by 280 
The aim is to understand the frequency of 280 in 55493712.

On to step 1:
When dividing 5 by 280, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 280

Step 2:
If we divide 55 by 280, we get 0 and a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Append the next digit (4) from the dividend to 55 and continue with: 554 / 280

Step 3:
280 can be fit into 554 1 times, resulting in a remainder of 274.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 280 away from 554, we end up with 274.
Include the next digit (9) from the dividend after 274, then repeat: 2749 / 280

Going ahead to step 4:
280 can be fit into 2749 9 times, resulting in a remainder of 229.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Subtracting 2520 from 2749 leaves us with 229.
Grab the next digit (3) from the dividend, add it to 229, then carry on: 2293 / 280

Going ahead to step 5:
If we divide 2293 by 280, we get 8 and a remainder of 53.
Write down 8 as next digit of the result. 
Result so far: 198.0
If we take 2240 away from 2293, we end up with 53.
Take the next digit (7) from the dividend and append it to 53, then repeat: 537 / 280

Going ahead to step 6:
537 divided by 280 is 1 with a remainder of 257.
The number 1 becomes the next digit in our result. 
Result so far: 1981.0
The remainder is 257 after subtracting 280 from 537.
Grab the next digit (1) from the dividend, add it to 257, then carry on: 2571 / 280

Let's proceed to step 7:
280 goes into 2571 9 times with a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 19819.0
Subtract 2520 from 2571 to get 51.
Append the next digit (2) from the dividend to 51 and continue with: 512 / 280

Going ahead to step 8:
When dividing 512 by 280, we get 1 with a remainder of 232.
Put 1 as the next digit of the answer. 
Result so far: 198191.0
If we take 280 away from 512, we end up with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

On to step 9:
280 goes into 2320 8 times with a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 198191.8
If we subtract 2240 from 2320, we 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.

Moving on to step 10:
The number 280 fits into 800 2 times, leaving a remainder of 240.
Put 2 as the next digit of the answer. 
Result so far: 198191.82
Subtracting 560 from 800 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 11:
280 goes into 2400 8 times with a remainder of 160.
Write down 8 as next digit of the result. 
Result so far: 198191.828
Subtract 2240 from 2400 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 12:
1600 divided by 280 is 5 with a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 198191.8285
If we subtract 1400 from 1600, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 13:
280 can be fit into 2000 7 times, resulting in a remainder of 40.
The next digit of our result is 7. 
Result so far: 198191.82857
Deduct 1960 from 2000 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 14:
The number 280 fits into 400 1 times, leaving a remainder of 120.
The number 1 becomes the next digit in our result. 
Result so far: 198191.828571
Deduct 280 from 400 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 15:
280 goes into 1200 4 times with a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 198191.8285714
If we subtract 1120 from 1200, we 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.

Let's proceed to step 16:
The number 280 fits into 800 2 times, leaving a remainder of 240.
Use 2 as the next digit of our solution. 
Result so far: 198191.82857142
If we take 560 away from 800, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

The quotient of the division is 198191.82857142, and the remainder is 2.4e-07.