Let's divide 990391 by 75
The aim is to understand the frequency of 75 in 990391.

Let's proceed to step 1:
9 divided by 75 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 75

Let's proceed to step 2:
When dividing 99 by 75, we get 1 with a remainder of 24.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 75 from 99 and we're left with 24.
Grab the next digit (0) from the dividend, add it to 24, then carry on: 240 / 75

Moving on to step 3:
The number 75 fits into 240 3 times, leaving a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtracting 225 from 240 leaves us with 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 75

Step 4:
The number 75 fits into 153 2 times, leaving a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 132.0
Deduct 150 from 153 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 75

Moving on to step 5:
If we divide 39 by 75, we get 0 and a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 1320.0
If we take 0 away from 39, we end up with 39.
Append the next digit (1) from the dividend to 39 and continue with: 391 / 75

Step 6:
391 divided by 75 is 5 with a remainder of 16.
Put 5 as the next digit of the answer. 
Result so far: 13205.0
If we subtract 375 from 391, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 7:
When dividing 160 by 75, we get 2 with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 13205.2
If we take 150 away from 160, we end up with 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 number 1 becomes the next digit in our result. 
Result so far: 13205.21
Subtract 75 from 100 to 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 9:
250 divided by 75 is 3 with a remainder of 25.
The next digit of our result is 3. 
Result so far: 13205.213
If we take 225 away from 250, 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.

Going ahead to step 10:
75 can be fit into 250 3 times, resulting in a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 13205.2133
Deduct 225 from 250 and we're left 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.

In conclusion, the division gives 13205.2133 with a balance of 0.00025.