Let's divide 63970478 by 491
The aim is to understand the frequency of 491 in 63970478.

Step 1:
The number 491 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 491

Let's proceed to step 2:
491 can be fit into 63 0 times, resulting in a remainder of 63.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Bring next digit (9) of the dividend behind the 63 and repeat the process: 639 / 491

Let's proceed to step 3:
The number 491 fits into 639 1 times, leaving a remainder of 148.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 491 from 639 leaves us with 148.
Take the next digit (7) from the dividend and append it to 148, then repeat: 1487 / 491

Going ahead to step 4:
1487 divided by 491 is 3 with a remainder of 14.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 1473 from 1487 leaves us with 14.
Bring next digit (0) of the dividend behind the 14 and repeat the process: 140 / 491

Let's proceed to step 5:
491 can be fit into 140 0 times, resulting in a remainder of 140.
Put 0 as the next digit of the answer. 
Result so far: 130.0
Subtract 0 from 140 to get 140.
Grab the next digit (4) from the dividend, add it to 140, then carry on: 1404 / 491

Moving on to step 6:
491 goes into 1404 2 times with a remainder of 422.
The next digit of our result is 2. 
Result so far: 1302.0
If we take 982 away from 1404, we end up with 422.
Append the next digit (7) from the dividend to 422 and continue with: 4227 / 491

Step 7:
The number 491 fits into 4227 8 times, leaving a remainder of 299.
The number 8 becomes the next digit in our result. 
Result so far: 13028.0
The remainder is 299 after subtracting 3928 from 4227.
Grab the next digit (8) from the dividend, add it to 299, then carry on: 2998 / 491

Step 8:
The number 491 fits into 2998 6 times, leaving a remainder of 52.
The number 6 becomes the next digit in our result. 
Result so far: 130286.0
Deduct 2946 from 2998 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.

Going ahead to step 9:
The number 491 fits into 520 1 times, leaving a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 130286.1
Deduct 491 from 520 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 10:
491 can be fit into 290 0 times, resulting in a remainder of 290.
The next digit of our result is 0. 
Result so far: 130286.1
Subtracting 0 from 290 leaves us with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 11:
491 goes into 2900 5 times with a remainder of 445.
Use 5 as the next digit of our solution. 
Result so far: 130286.105
If we take 2455 away from 2900, we end up with 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Advancing to step 12:
If we divide 4450 by 491, we get 9 and a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 130286.1059
If we take 4419 away from 4450, we end up 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.

Moving on to step 13:
491 goes into 310 0 times with a remainder of 310.
Put 0 as the next digit of the answer. 
Result so far: 130286.1059
If we take 0 away from 310, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

On to step 14:
491 goes into 3100 6 times with a remainder of 154.
Record the quotient 6 as the next digit in the result. 
Result so far: 130286.105906
The remainder is 154 after subtracting 2946 from 3100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Let's proceed to step 15:
491 can be fit into 1540 3 times, resulting in a remainder of 67.
Record the quotient 3 as the next digit in the result. 
Result so far: 130286.1059063
The remainder is 67 after subtracting 1473 from 1540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 16:
491 goes into 670 1 times with a remainder of 179.
Use 1 as the next digit of our solution. 
Result so far: 130286.10590631
Subtracting 491 from 670 leaves us with 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Our division results in 130286.10590631 with a remaining 1.79e-07.