Let's divide 39078441 by 280
The aim is to understand the frequency of 280 in 39078441.

Moving on to step 1:
280 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 280

Going ahead to step 2:
The number 280 fits into 39 0 times, leaving a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Fetch the next digit (0) from the dividend, attach it to 39 and continue: 390 / 280

On to step 3:
280 goes into 390 1 times with a remainder of 110.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 280 away from 390, we end up with 110.
Grab the next digit (7) from the dividend, add it to 110, then carry on: 1107 / 280

Let's proceed to step 4:
280 goes into 1107 3 times with a remainder of 267.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Deduct 840 from 1107 and we're left with 267.
Append the next digit (8) from the dividend to 267 and continue with: 2678 / 280

Let's proceed to step 5:
If we divide 2678 by 280, we get 9 and a remainder of 158.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
Subtracting 2520 from 2678 leaves us with 158.
Include the next digit (4) from the dividend after 158, then repeat: 1584 / 280

On to step 6:
280 can be fit into 1584 5 times, resulting in a remainder of 184.
Record the quotient 5 as the next digit in the result. 
Result so far: 1395.0
Subtract 1400 from 1584 to get 184.
Include the next digit (4) from the dividend after 184, then repeat: 1844 / 280

On to step 7:
If we divide 1844 by 280, we get 6 and a remainder of 164.
Put 6 as the next digit of the answer. 
Result so far: 13956.0
The remainder is 164 after subtracting 1680 from 1844.
Take the next digit (1) from the dividend and append it to 164, then repeat: 1641 / 280

Advancing to step 8:
The number 280 fits into 1641 5 times, leaving a remainder of 241.
Write down 5 as next digit of the result. 
Result so far: 139565.0
If we subtract 1400 from 1641, we get 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

On to step 9:
2410 divided by 280 is 8 with a remainder of 170.
Put 8 as the next digit of the answer. 
Result so far: 139565.8
If we take 2240 away from 2410, we end up 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.

Advancing to step 10:
The number 280 fits into 1700 6 times, leaving a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 139565.86
Deduct 1680 from 1700 and we're left with 20.
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: 139565.86
Subtracting 0 from 200 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 12:
The number 280 fits into 2000 7 times, leaving a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 139565.8607
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.

Let's proceed to step 13:
If we divide 400 by 280, we get 1 and a remainder of 120.
Use 1 as the next digit of our solution. 
Result so far: 139565.86071
Subtract 280 from 400 to 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.

Step 14:
If we divide 1200 by 280, we get 4 and a remainder of 80.
The number 4 becomes the next digit in our result. 
Result so far: 139565.860714
Deduct 1120 from 1200 and we're left 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.

Advancing to step 15:
The number 280 fits into 800 2 times, leaving a remainder of 240.
Put 2 as the next digit of the answer. 
Result so far: 139565.8607142
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.

Let's proceed to step 16:
If we divide 2400 by 280, we get 8 and a remainder of 160.
Record the quotient 8 as the next digit in the result. 
Result so far: 139565.86071428
If we take 2240 away from 2400, we end up 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 139565.86071428 with a remaining 1.6e-07.