Let's divide 12840450 by 750
The aim is to understand the frequency of 750 in 12840450.

Going ahead to step 1:
750 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 750

Advancing to step 2:
12 divided by 750 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 750

Step 3:
The number 750 fits into 128 0 times, leaving a remainder of 128.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 128, we end up with 128.
Append the next digit (4) from the dividend to 128 and continue with: 1284 / 750

Step 4:
1284 divided by 750 is 1 with a remainder of 534.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 750 from 1284 leaves us with 534.
Fetch the next digit (0) from the dividend, attach it to 534 and continue: 5340 / 750

Step 5:
When dividing 5340 by 750, we get 7 with a remainder of 90.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 90 after subtracting 5250 from 5340.
Include the next digit (4) from the dividend after 90, then repeat: 904 / 750

Moving on to step 6:
750 can be fit into 904 1 times, resulting in a remainder of 154.
Use 1 as the next digit of our solution. 
Result so far: 171.0
The remainder is 154 after subtracting 750 from 904.
Append the next digit (5) from the dividend to 154 and continue with: 1545 / 750

Step 7:
750 goes into 1545 2 times with a remainder of 45.
Write down 2 as next digit of the result. 
Result so far: 1712.0
If we subtract 1500 from 1545, we get 45.
Bring next digit (0) of the dividend behind the 45 and repeat the process: 450 / 750

On to step 8:
450 divided by 750 is 0 with a remainder of 450.
Put 0 as the next digit of the answer. 
Result so far: 17120.0
The remainder is 450 after subtracting 0 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 9:
If we divide 4500 by 750, we get 6 and a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 17120.6
The remainder is 0 after subtracting 4500 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
0 divided by 750 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 17120.6
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
The number 750 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 17120.6
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 17120.6 with a remaining 0.0.