We divide 31550300 by 750
The aim is to understand the frequency of 750 in 31550300.

Step 1:
If we divide 3 by 750, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 750

Moving on to step 2:
The number 750 fits into 31 0 times, leaving a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Bring next digit (5) of the dividend behind the 31 and repeat the process: 315 / 750

Going ahead to step 3:
If we divide 315 by 750, we get 0 and a remainder of 315.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 315 after subtracting 0 from 315.
Bring next digit (5) of the dividend behind the 315 and repeat the process: 3155 / 750

Going ahead to step 4:
750 can be fit into 3155 4 times, resulting in a remainder of 155.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 3000 from 3155 leaves us with 155.
Take the next digit (0) from the dividend and append it to 155, then repeat: 1550 / 750

On to step 5:
If we divide 1550 by 750, we get 2 and a remainder of 50.
Use 2 as the next digit of our solution. 
Result so far: 42.0
If we subtract 1500 from 1550, we get 50.
Take the next digit (3) from the dividend and append it to 50, then repeat: 503 / 750

Let's proceed to step 6:
750 can be fit into 503 0 times, resulting in a remainder of 503.
Record the quotient 0 as the next digit in the result. 
Result so far: 420.0
If we take 0 away from 503, we end up with 503.
Include the next digit (0) from the dividend after 503, then repeat: 5030 / 750

Let's proceed to step 7:
5030 divided by 750 is 6 with a remainder of 530.
Use 6 as the next digit of our solution. 
Result so far: 4206.0
Subtracting 4500 from 5030 leaves us with 530.
Bring next digit (0) of the dividend behind the 530 and repeat the process: 5300 / 750

Advancing to step 8:
When dividing 5300 by 750, we get 7 with a remainder of 50.
Record the quotient 7 as the next digit in the result. 
Result so far: 42067.0
Subtract 5250 from 5300 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
500 divided by 750 is 0 with a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 42067.0
If we subtract 0 from 500, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Going ahead to step 10:
5000 divided by 750 is 6 with a remainder of 500.
The next digit of our result is 6. 
Result so far: 42067.06
If we take 4500 away from 5000, we end up with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Advancing to step 11:
The number 750 fits into 5000 6 times, leaving a remainder of 500.
The next digit of our result is 6. 
Result so far: 42067.066
Deduct 4500 from 5000 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final result is 42067.066 with a remainder of 0.05.