25729860 divided by 491 
The aim is to understand the frequency of 491 in 25729860.

Moving on to step 1:
If we divide 2 by 491, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 491

Step 2:
The number 491 fits into 25 0 times, leaving a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Append the next digit (7) from the dividend to 25 and continue with: 257 / 491

Advancing to step 3:
491 can be fit into 257 0 times, resulting in a remainder of 257.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 257, we end up with 257.
Include the next digit (2) from the dividend after 257, then repeat: 2572 / 491

Moving on to step 4:
491 can be fit into 2572 5 times, resulting in a remainder of 117.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 2455 from 2572 to get 117.
Fetch the next digit (9) from the dividend, attach it to 117 and continue: 1179 / 491

On to step 5:
The number 491 fits into 1179 2 times, leaving a remainder of 197.
Put 2 as the next digit of the answer. 
Result so far: 52.0
The remainder is 197 after subtracting 982 from 1179.
Bring next digit (8) of the dividend behind the 197 and repeat the process: 1978 / 491

On to step 6:
If we divide 1978 by 491, we get 4 and a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 524.0
Deduct 1964 from 1978 and we're left with 14.
Grab the next digit (6) from the dividend, add it to 14, then carry on: 146 / 491

Let's proceed to step 7:
491 goes into 146 0 times with a remainder of 146.
The number 0 becomes the next digit in our result. 
Result so far: 5240.0
Deduct 0 from 146 and we're left with 146.
Fetch the next digit (0) from the dividend, attach it to 146 and continue: 1460 / 491

Moving on to step 8:
When dividing 1460 by 491, we get 2 with a remainder of 478.
Record the quotient 2 as the next digit in the result. 
Result so far: 52402.0
The remainder is 478 after subtracting 982 from 1460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Let's proceed to step 9:
4780 divided by 491 is 9 with a remainder of 361.
Use 9 as the next digit of our solution. 
Result so far: 52402.9
Subtracting 4419 from 4780 leaves us with 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Step 10:
The number 491 fits into 3610 7 times, leaving a remainder of 173.
Write down 7 as next digit of the result. 
Result so far: 52402.97
Subtracting 3437 from 3610 leaves us with 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

On to step 11:
If we divide 1730 by 491, we get 3 and a remainder of 257.
Use 3 as the next digit of our solution. 
Result so far: 52402.973
Deduct 1473 from 1730 and we're left with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Step 12:
When dividing 2570 by 491, we get 5 with a remainder of 115.
The next digit of our result is 5. 
Result so far: 52402.9735
Subtracting 2455 from 2570 leaves us with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Step 13:
The number 491 fits into 1150 2 times, leaving a remainder of 168.
Record the quotient 2 as the next digit in the result. 
Result so far: 52402.97352
Subtract 982 from 1150 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 14:
If we divide 1680 by 491, we get 3 and a remainder of 207.
Use 3 as the next digit of our solution. 
Result so far: 52402.973523
The remainder is 207 after subtracting 1473 from 1680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Moving on to step 15:
491 can be fit into 2070 4 times, resulting in a remainder of 106.
Record the quotient 4 as the next digit in the result. 
Result so far: 52402.9735234
If we subtract 1964 from 2070, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Going ahead to step 16:
491 can be fit into 1060 2 times, resulting in a remainder of 78.
Use 2 as the next digit of our solution. 
Result so far: 52402.97352342
If we take 982 away from 1060, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

After the division, we end up with 52402.97352342 and a remainder of 7.8e-08.