Let's divide 91143463 by 397
The aim is to understand the frequency of 397 in 91143463.

Let's proceed to step 1:
When dividing 9 by 397, we get 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.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 397

On to step 2:
91 divided by 397 is 0 with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Fetch the next digit (1) from the dividend, attach it to 91 and continue: 911 / 397

Advancing to step 3:
If we divide 911 by 397, we get 2 and a remainder of 117.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 794 from 911 leaves us with 117.
Take the next digit (4) from the dividend and append it to 117, then repeat: 1174 / 397

Let's proceed to step 4:
397 can be fit into 1174 2 times, resulting in a remainder of 380.
Put 2 as the next digit of the answer. 
Result so far: 22.0
Deduct 794 from 1174 and we're left with 380.
Include the next digit (3) from the dividend after 380, then repeat: 3803 / 397

Moving on to step 5:
397 goes into 3803 9 times with a remainder of 230.
Put 9 as the next digit of the answer. 
Result so far: 229.0
If we subtract 3573 from 3803, we get 230.
Grab the next digit (4) from the dividend, add it to 230, then carry on: 2304 / 397

Step 6:
When dividing 2304 by 397, we get 5 with a remainder of 319.
The number 5 becomes the next digit in our result. 
Result so far: 2295.0
Subtract 1985 from 2304 to get 319.
Append the next digit (6) from the dividend to 319 and continue with: 3196 / 397

Let's proceed to step 7:
397 goes into 3196 8 times with a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 22958.0
Subtracting 3176 from 3196 leaves us with 20.
Append the next digit (3) from the dividend to 20 and continue with: 203 / 397

On to step 8:
When dividing 203 by 397, we get 0 with a remainder of 203.
Write down 0 as next digit of the result. 
Result so far: 229580.0
If we subtract 0 from 203, we get 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Moving on to step 9:
The number 397 fits into 2030 5 times, leaving a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 229580.5
The remainder is 45 after subtracting 1985 from 2030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 10:
The number 397 fits into 450 1 times, leaving a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 229580.51
Subtracting 397 from 450 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 11:
When dividing 530 by 397, we get 1 with a remainder of 133.
The number 1 becomes the next digit in our result. 
Result so far: 229580.511
Subtracting 397 from 530 leaves us with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

The final outcome is 229580.511, with a leftover of 0.0133.