781756 ÷ 75 
The aim is to understand the frequency of 75 in 781756.

On to step 1:
75 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 75

On to step 2:
If we divide 78 by 75, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 75 from 78 leaves us with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 75

Going ahead to step 3:
75 can be fit into 31 0 times, resulting in a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 31 and we're left with 31.
Fetch the next digit (7) from the dividend, attach it to 31 and continue: 317 / 75

Going ahead to step 4:
If we divide 317 by 75, we get 4 and a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 104.0
If we take 300 away from 317, we end up with 17.
Bring next digit (5) of the dividend behind the 17 and repeat the process: 175 / 75

Step 5:
The number 75 fits into 175 2 times, leaving a remainder of 25.
Use 2 as the next digit of our solution. 
Result so far: 1042.0
If we take 150 away from 175, we end up with 25.
Grab the next digit (6) from the dividend, add it to 25, then carry on: 256 / 75

Let's proceed to step 6:
256 divided by 75 is 3 with a remainder of 31.
Write down 3 as next digit of the result. 
Result so far: 10423.0
Deduct 225 from 256 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 7:
If we divide 310 by 75, we get 4 and a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 10423.4
If we subtract 300 from 310, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
100 divided by 75 is 1 with a remainder of 25.
The next digit of our result is 1. 
Result so far: 10423.41
If we take 75 away from 100, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 9:
75 goes into 250 3 times with a remainder of 25.
The next digit of our result is 3. 
Result so far: 10423.413
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 10:
When dividing 250 by 75, we get 3 with a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 10423.4133
Subtracting 225 from 250 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The quotient of the division is 10423.4133, and the remainder is 0.00025.