3693328 ÷ 280 
The aim is to understand the frequency of 280 in 3693328.

Let's proceed to step 1:
The number 280 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 280

Going ahead to step 2:
When dividing 36 by 280, we get 0 with a remainder of 36.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 36 to get 36.
Bring next digit (9) of the dividend behind the 36 and repeat the process: 369 / 280

Advancing to step 3:
280 goes into 369 1 times with a remainder of 89.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 280 from 369, we get 89.
Include the next digit (3) from the dividend after 89, then repeat: 893 / 280

Let's proceed to step 4:
The number 280 fits into 893 3 times, leaving a remainder of 53.
The next digit of our result is 3. 
Result so far: 13.0
Subtract 840 from 893 to get 53.
Bring next digit (3) of the dividend behind the 53 and repeat the process: 533 / 280

Moving on to step 5:
If we divide 533 by 280, we get 1 and a remainder of 253.
Write down 1 as next digit of the result. 
Result so far: 131.0
Deduct 280 from 533 and we're left with 253.
Append the next digit (2) from the dividend to 253 and continue with: 2532 / 280

Going ahead to step 6:
The number 280 fits into 2532 9 times, leaving a remainder of 12.
The number 9 becomes the next digit in our result. 
Result so far: 1319.0
Subtracting 2520 from 2532 leaves us with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 280

Advancing to step 7:
The number 280 fits into 128 0 times, leaving a remainder of 128.
Record the quotient 0 as the next digit in the result. 
Result so far: 13190.0
The remainder is 128 after subtracting 0 from 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 8:
280 goes into 1280 4 times with a remainder of 160.
The number 4 becomes the next digit in our result. 
Result so far: 13190.4
If we subtract 1120 from 1280, we 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.

Going ahead to step 9:
1600 divided by 280 is 5 with a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 13190.45
The remainder is 200 after subtracting 1400 from 1600.
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 10:
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: 13190.457
If we subtract 1960 from 2000, we get 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 11:
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: 13190.4571
If we subtract 280 from 400, we get 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 12:
280 goes into 1200 4 times with a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 13190.45714
Subtract 1120 from 1200 to 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.

Going ahead to step 13:
800 divided by 280 is 2 with a remainder of 240.
Put 2 as the next digit of the answer. 
Result so far: 13190.457142
If we subtract 560 from 800, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 14:
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: 13190.4571428
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 15:
280 can be fit into 1600 5 times, resulting in a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 13190.45714285
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.

The final outcome is 13190.45714285, with a leftover of 2e-07.