We look at the division of 7153516 by 280 
The aim is to understand the frequency of 280 in 7153516.

Moving on to step 1:
280 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 280

Advancing to step 2:
280 goes into 71 0 times with a remainder of 71.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 71 to get 71.
Fetch the next digit (5) from the dividend, attach it to 71 and continue: 715 / 280

Moving on to step 3:
If we divide 715 by 280, we get 2 and a remainder of 155.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 155 after subtracting 560 from 715.
Append the next digit (3) from the dividend to 155 and continue with: 1553 / 280

Moving on to step 4:
If we divide 1553 by 280, we get 5 and a remainder of 153.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtracting 1400 from 1553 leaves us with 153.
Bring next digit (5) of the dividend behind the 153 and repeat the process: 1535 / 280

Moving on to step 5:
The number 280 fits into 1535 5 times, leaving a remainder of 135.
The next digit of our result is 5. 
Result so far: 255.0
The remainder is 135 after subtracting 1400 from 1535.
Grab the next digit (1) from the dividend, add it to 135, then carry on: 1351 / 280

Going ahead to step 6:
When dividing 1351 by 280, we get 4 with a remainder of 231.
Put 4 as the next digit of the answer. 
Result so far: 2554.0
If we take 1120 away from 1351, we end up with 231.
Bring next digit (6) of the dividend behind the 231 and repeat the process: 2316 / 280

Going ahead to step 7:
The number 280 fits into 2316 8 times, leaving a remainder of 76.
Use 8 as the next digit of our solution. 
Result so far: 25548.0
If we subtract 2240 from 2316, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 8:
280 can be fit into 760 2 times, resulting in a remainder of 200.
Record the quotient 2 as the next digit in the result. 
Result so far: 25548.2
Subtracting 560 from 760 leaves us 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.

Going ahead to step 9:
If we divide 2000 by 280, we get 7 and a remainder of 40.
The next digit of our result is 7. 
Result so far: 25548.27
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.

On to step 10:
400 divided by 280 is 1 with a remainder of 120.
The number 1 becomes the next digit in our result. 
Result so far: 25548.271
If we take 280 away from 400, we end up 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 11:
1200 divided by 280 is 4 with a remainder of 80.
Put 4 as the next digit of the answer. 
Result so far: 25548.2714
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.

On to step 12:
If we divide 800 by 280, we get 2 and a remainder of 240.
Write down 2 as next digit of the result. 
Result so far: 25548.27142
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 13:
The number 280 fits into 2400 8 times, leaving a remainder of 160.
The next digit of our result is 8. 
Result so far: 25548.271428
The remainder is 160 after subtracting 2240 from 2400.
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 14:
The number 280 fits into 1600 5 times, leaving a remainder of 200.
Record the quotient 5 as the next digit in the result. 
Result so far: 25548.2714285
Subtract 1400 from 1600 to 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.

Let's proceed to step 15:
If we divide 2000 by 280, we get 7 and a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 25548.27142857
If we take 1960 away from 2000, we end up 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 result is 25548.27142857 with a remainder of 4e-08.