We divide 726489 by 391
The aim is to understand the frequency of 391 in 726489.

Moving on to step 1:
391 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 391

Moving on to step 2:
If we divide 72 by 391, we get 0 and a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Grab the next digit (6) from the dividend, add it to 72, then carry on: 726 / 391

Step 3:
The number 391 fits into 726 1 times, leaving a remainder of 335.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 391 away from 726, we end up with 335.
Include the next digit (4) from the dividend after 335, then repeat: 3354 / 391

Let's proceed to step 4:
If we divide 3354 by 391, we get 8 and a remainder of 226.
The next digit of our result is 8. 
Result so far: 18.0
Subtract 3128 from 3354 to get 226.
Bring next digit (8) of the dividend behind the 226 and repeat the process: 2268 / 391

Step 5:
If we divide 2268 by 391, we get 5 and a remainder of 313.
Use 5 as the next digit of our solution. 
Result so far: 185.0
If we subtract 1955 from 2268, we get 313.
Include the next digit (9) from the dividend after 313, then repeat: 3139 / 391

On to step 6:
When dividing 3139 by 391, we get 8 with a remainder of 11.
The next digit of our result is 8. 
Result so far: 1858.0
Subtracting 3128 from 3139 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
110 divided by 391 is 0 with a remainder of 110.
Record the quotient 0 as the next digit in the result. 
Result so far: 1858.0
If we subtract 0 from 110, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 8:
1100 divided by 391 is 2 with a remainder of 318.
Use 2 as the next digit of our solution. 
Result so far: 1858.02
Deduct 782 from 1100 and we're left with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Moving on to step 9:
391 can be fit into 3180 8 times, resulting in a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 1858.028
Deduct 3128 from 3180 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 10:
520 divided by 391 is 1 with a remainder of 129.
The number 1 becomes the next digit in our result. 
Result so far: 1858.0281
The remainder is 129 after subtracting 391 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Step 11:
The number 391 fits into 1290 3 times, leaving a remainder of 117.
The next digit of our result is 3. 
Result so far: 1858.02813
Deduct 1173 from 1290 and we're left with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

On to step 12:
If we divide 1170 by 391, we get 2 and a remainder of 388.
The next digit of our result is 2. 
Result so far: 1858.028132
Subtract 782 from 1170 to get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Going ahead to step 13:
The number 391 fits into 3880 9 times, leaving a remainder of 361.
The number 9 becomes the next digit in our result. 
Result so far: 1858.0281329
The remainder is 361 after subtracting 3519 from 3880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Step 14:
391 goes into 3610 9 times with a remainder of 91.
The number 9 becomes the next digit in our result. 
Result so far: 1858.02813299
Deduct 3519 from 3610 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

In conclusion, the division gives 1858.02813299 with a balance of 9.1e-08.