66942110 divided by 491 
The aim is to understand the frequency of 491 in 66942110.

Step 1:
The number 491 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 491

Advancing to step 2:
491 goes into 66 0 times with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Grab the next digit (9) from the dividend, add it to 66, then carry on: 669 / 491

Going ahead to step 3:
669 divided by 491 is 1 with a remainder of 178.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 491 from 669 leaves us with 178.
Grab the next digit (4) from the dividend, add it to 178, then carry on: 1784 / 491

Let's proceed to step 4:
The number 491 fits into 1784 3 times, leaving a remainder of 311.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 1473 from 1784, we get 311.
Take the next digit (2) from the dividend and append it to 311, then repeat: 3112 / 491

Advancing to step 5:
491 goes into 3112 6 times with a remainder of 166.
The next digit of our result is 6. 
Result so far: 136.0
Deduct 2946 from 3112 and we're left with 166.
Bring next digit (1) of the dividend behind the 166 and repeat the process: 1661 / 491

Let's proceed to step 6:
If we divide 1661 by 491, we get 3 and a remainder of 188.
Record the quotient 3 as the next digit in the result. 
Result so far: 1363.0
Deduct 1473 from 1661 and we're left with 188.
Grab the next digit (1) from the dividend, add it to 188, then carry on: 1881 / 491

On to step 7:
491 goes into 1881 3 times with a remainder of 408.
Record the quotient 3 as the next digit in the result. 
Result so far: 13633.0
If we subtract 1473 from 1881, we get 408.
Include the next digit (0) from the dividend after 408, then repeat: 4080 / 491

Moving on to step 8:
491 can be fit into 4080 8 times, resulting in a remainder of 152.
The next digit of our result is 8. 
Result so far: 136338.0
Subtract 3928 from 4080 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 9:
When dividing 1520 by 491, we get 3 with a remainder of 47.
The next digit of our result is 3. 
Result so far: 136338.3
Subtracting 1473 from 1520 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 10:
If we divide 470 by 491, we get 0 and a remainder of 470.
Record the quotient 0 as the next digit in the result. 
Result so far: 136338.3
Subtracting 0 from 470 leaves us with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Moving on to step 11:
The number 491 fits into 4700 9 times, leaving a remainder of 281.
Put 9 as the next digit of the answer. 
Result so far: 136338.309
If we subtract 4419 from 4700, we get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

On to step 12:
2810 divided by 491 is 5 with a remainder of 355.
Write down 5 as next digit of the result. 
Result so far: 136338.3095
If we take 2455 away from 2810, we end up with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Step 13:
491 can be fit into 3550 7 times, resulting in a remainder of 113.
Use 7 as the next digit of our solution. 
Result so far: 136338.30957
If we take 3437 away from 3550, we end up with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Advancing to step 14:
When dividing 1130 by 491, we get 2 with a remainder of 148.
Use 2 as the next digit of our solution. 
Result so far: 136338.309572
Deduct 982 from 1130 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 15:
When dividing 1480 by 491, we get 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 136338.3095723
The remainder is 7 after subtracting 1473 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 16:
70 divided by 491 is 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 136338.3095723
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

In conclusion, the division gives 136338.3095723 with a balance of 7e-08.