4948299 ÷ 280 
The aim is to understand the frequency of 280 in 4948299.

Going ahead to step 1:
4 divided by 280 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 280

Moving on to step 2:
49 divided by 280 is 0 with a remainder of 49.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 49, we get 49.
Bring next digit (4) of the dividend behind the 49 and repeat the process: 494 / 280

On to step 3:
When dividing 494 by 280, we get 1 with a remainder of 214.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 280 from 494, we get 214.
Append the next digit (8) from the dividend to 214 and continue with: 2148 / 280

Advancing to step 4:
280 can be fit into 2148 7 times, resulting in a remainder of 188.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Deduct 1960 from 2148 and we're left with 188.
Bring next digit (2) of the dividend behind the 188 and repeat the process: 1882 / 280

On to step 5:
When dividing 1882 by 280, we get 6 with a remainder of 202.
The number 6 becomes the next digit in our result. 
Result so far: 176.0
If we subtract 1680 from 1882, we get 202.
Append the next digit (9) from the dividend to 202 and continue with: 2029 / 280

Going ahead to step 6:
2029 divided by 280 is 7 with a remainder of 69.
Record the quotient 7 as the next digit in the result. 
Result so far: 1767.0
Subtract 1960 from 2029 to get 69.
Bring next digit (9) of the dividend behind the 69 and repeat the process: 699 / 280

On to step 7:
If we divide 699 by 280, we get 2 and a remainder of 139.
Write down 2 as next digit of the result. 
Result so far: 17672.0
Deduct 560 from 699 and we're left with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 8:
280 can be fit into 1390 4 times, resulting in a remainder of 270.
The next digit of our result is 4. 
Result so far: 17672.4
Subtract 1120 from 1390 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Advancing to step 9:
280 goes into 2700 9 times with a remainder of 180.
Record the quotient 9 as the next digit in the result. 
Result so far: 17672.49
If we subtract 2520 from 2700, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 10:
280 can be fit into 1800 6 times, resulting in a remainder of 120.
Write down 6 as next digit of the result. 
Result so far: 17672.496
Deduct 1680 from 1800 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.

On to step 11:
280 can be fit into 1200 4 times, resulting in a remainder of 80.
Record the quotient 4 as the next digit in the result. 
Result so far: 17672.4964
The remainder is 80 after subtracting 1120 from 1200.
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 12:
When dividing 800 by 280, we get 2 with a remainder of 240.
Write down 2 as next digit of the result. 
Result so far: 17672.49642
Deduct 560 from 800 and we're left 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.

On to step 13:
280 can be fit into 2400 8 times, resulting in a remainder of 160.
Write down 8 as next digit of the result. 
Result so far: 17672.496428
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.

Moving on to step 14:
The number 280 fits into 1600 5 times, leaving a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 17672.4964285
Deduct 1400 from 1600 and we're left 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.

Advancing to step 15:
280 goes into 2000 7 times with a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 17672.49642857
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.

The final outcome is 17672.49642857, with a leftover of 4e-08.