Let's divide 71598223 by 280
The aim is to understand the frequency of 280 in 71598223.

Going ahead to step 1:
7 divided by 280 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 280

On to step 2:
280 can be fit into 71 0 times, resulting in a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 71, we end up with 71.
Fetch the next digit (5) from the dividend, attach it to 71 and continue: 715 / 280

Moving on to step 3:
The number 280 fits into 715 2 times, leaving a remainder of 155.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 155 after subtracting 560 from 715.
Include the next digit (9) from the dividend after 155, then repeat: 1559 / 280

On to step 4:
The number 280 fits into 1559 5 times, leaving a remainder of 159.
Write down 5 as next digit of the result. 
Result so far: 25.0
If we subtract 1400 from 1559, we get 159.
Fetch the next digit (8) from the dividend, attach it to 159 and continue: 1598 / 280

Moving on to step 5:
The number 280 fits into 1598 5 times, leaving a remainder of 198.
The number 5 becomes the next digit in our result. 
Result so far: 255.0
Subtracting 1400 from 1598 leaves us with 198.
Grab the next digit (2) from the dividend, add it to 198, then carry on: 1982 / 280

Let's proceed to step 6:
The number 280 fits into 1982 7 times, leaving a remainder of 22.
Put 7 as the next digit of the answer. 
Result so far: 2557.0
Subtract 1960 from 1982 to get 22.
Bring next digit (2) of the dividend behind the 22 and repeat the process: 222 / 280

Let's proceed to step 7:
The number 280 fits into 222 0 times, leaving a remainder of 222.
The next digit of our result is 0. 
Result so far: 25570.0
If we subtract 0 from 222, we get 222.
Fetch the next digit (3) from the dividend, attach it to 222 and continue: 2223 / 280

Let's proceed to step 8:
2223 divided by 280 is 7 with a remainder of 263.
The next digit of our result is 7. 
Result so far: 255707.0
Deduct 1960 from 2223 and we're left with 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

On to step 9:
280 can be fit into 2630 9 times, resulting in a remainder of 110.
Record the quotient 9 as the next digit in the result. 
Result so far: 255707.9
The remainder is 110 after subtracting 2520 from 2630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 10:
280 goes into 1100 3 times with a remainder of 260.
Write down 3 as next digit of the result. 
Result so far: 255707.93
If we subtract 840 from 1100, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 11:
If we divide 2600 by 280, we get 9 and a remainder of 80.
Write down 9 as next digit of the result. 
Result so far: 255707.939
The remainder is 80 after subtracting 2520 from 2600.
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:
800 divided by 280 is 2 with a remainder of 240.
Use 2 as the next digit of our solution. 
Result so far: 255707.9392
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.

Moving on 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: 255707.93928
If we subtract 2240 from 2400, 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.

On to step 14:
280 can be fit into 1600 5 times, resulting in a remainder of 200.
The next digit of our result is 5. 
Result so far: 255707.939285
Subtracting 1400 from 1600 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.

On to step 15:
If we divide 2000 by 280, we get 7 and a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 255707.9392857
The remainder is 40 after subtracting 1960 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 16:
280 goes into 400 1 times with a remainder of 120.
Record the quotient 1 as the next digit in the result. 
Result so far: 255707.93928571
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.

The quotient of the division is 255707.93928571, and the remainder is 1.2e-07.