We're dividing 58718649 by 280 
The aim is to understand the frequency of 280 in 58718649.

On to step 1:
If we divide 5 by 280, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 280

Going ahead to step 2:
280 can be fit into 58 0 times, resulting in a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 58, we get 58.
Grab the next digit (7) from the dividend, add it to 58, then carry on: 587 / 280

Advancing to step 3:
If we divide 587 by 280, we get 2 and a remainder of 27.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 27 after subtracting 560 from 587.
Bring next digit (1) of the dividend behind the 27 and repeat the process: 271 / 280

On to step 4:
280 goes into 271 0 times with a remainder of 271.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtracting 0 from 271 leaves us with 271.
Grab the next digit (8) from the dividend, add it to 271, then carry on: 2718 / 280

Moving on to step 5:
2718 divided by 280 is 9 with a remainder of 198.
Record the quotient 9 as the next digit in the result. 
Result so far: 209.0
Deduct 2520 from 2718 and we're left with 198.
Grab the next digit (6) from the dividend, add it to 198, then carry on: 1986 / 280

Going ahead to step 6:
280 goes into 1986 7 times with a remainder of 26.
The next digit of our result is 7. 
Result so far: 2097.0
Subtract 1960 from 1986 to get 26.
Grab the next digit (4) from the dividend, add it to 26, then carry on: 264 / 280

Step 7:
264 divided by 280 is 0 with a remainder of 264.
Write down 0 as next digit of the result. 
Result so far: 20970.0
Subtracting 0 from 264 leaves us with 264.
Grab the next digit (9) from the dividend, add it to 264, then carry on: 2649 / 280

Going ahead to step 8:
280 goes into 2649 9 times with a remainder of 129.
The next digit of our result is 9. 
Result so far: 209709.0
If we subtract 2520 from 2649, we get 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Advancing to step 9:
If we divide 1290 by 280, we get 4 and a remainder of 170.
Record the quotient 4 as the next digit in the result. 
Result so far: 209709.4
Deduct 1120 from 1290 and we're left 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.

Moving on to step 10:
280 can be fit into 1700 6 times, resulting in a remainder of 20.
The next digit of our result is 6. 
Result so far: 209709.46
The remainder is 20 after subtracting 1680 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 11:
The number 280 fits into 200 0 times, leaving a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 209709.46
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 12:
When dividing 2000 by 280, we get 7 with a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 209709.4607
Subtracting 1960 from 2000 leaves us 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.

Advancing to step 13:
280 can be fit into 400 1 times, resulting in a remainder of 120.
The number 1 becomes the next digit in our result. 
Result so far: 209709.46071
Subtracting 280 from 400 leaves us 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.

Step 14:
If we divide 1200 by 280, we get 4 and a remainder of 80.
Use 4 as the next digit of our solution. 
Result so far: 209709.460714
If we take 1120 away from 1200, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 15:
If we divide 800 by 280, we get 2 and a remainder of 240.
The next digit of our result is 2. 
Result so far: 209709.4607142
The remainder is 240 after subtracting 560 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 16:
If we divide 2400 by 280, we get 8 and a remainder of 160.
Write down 8 as next digit of the result. 
Result so far: 209709.46071428
Deduct 2240 from 2400 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Our division results in 209709.46071428 with a remaining 1.6e-07.