We divide 20661967 by 490
The aim is to understand the frequency of 490 in 20661967.

Step 1:
490 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 490

Advancing to step 2:
The number 490 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Include the next digit (6) from the dividend after 20, then repeat: 206 / 490

On to step 3:
206 divided by 490 is 0 with a remainder of 206.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 206 leaves us with 206.
Bring next digit (6) of the dividend behind the 206 and repeat the process: 2066 / 490

Let's proceed to step 4:
When dividing 2066 by 490, we get 4 with a remainder of 106.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 106 after subtracting 1960 from 2066.
Take the next digit (1) from the dividend and append it to 106, then repeat: 1061 / 490

Advancing to step 5:
490 can be fit into 1061 2 times, resulting in a remainder of 81.
Use 2 as the next digit of our solution. 
Result so far: 42.0
If we take 980 away from 1061, we end up with 81.
Fetch the next digit (9) from the dividend, attach it to 81 and continue: 819 / 490

On to step 6:
490 goes into 819 1 times with a remainder of 329.
Use 1 as the next digit of our solution. 
Result so far: 421.0
Deduct 490 from 819 and we're left with 329.
Append the next digit (6) from the dividend to 329 and continue with: 3296 / 490

Going ahead to step 7:
The number 490 fits into 3296 6 times, leaving a remainder of 356.
Record the quotient 6 as the next digit in the result. 
Result so far: 4216.0
If we take 2940 away from 3296, we end up with 356.
Append the next digit (7) from the dividend to 356 and continue with: 3567 / 490

Advancing to step 8:
If we divide 3567 by 490, we get 7 and a remainder of 137.
Record the quotient 7 as the next digit in the result. 
Result so far: 42167.0
The remainder is 137 after subtracting 3430 from 3567.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Moving on to step 9:
490 can be fit into 1370 2 times, resulting in a remainder of 390.
Record the quotient 2 as the next digit in the result. 
Result so far: 42167.2
Subtracting 980 from 1370 leaves us with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Moving on to step 10:
When dividing 3900 by 490, we get 7 with a remainder of 470.
Write down 7 as next digit of the result. 
Result so far: 42167.27
If we subtract 3430 from 3900, we get 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Going ahead to step 11:
4700 divided by 490 is 9 with a remainder of 290.
Write down 9 as next digit of the result. 
Result so far: 42167.279
Subtracting 4410 from 4700 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.

Going ahead to step 12:
2900 divided by 490 is 5 with a remainder of 450.
The number 5 becomes the next digit in our result. 
Result so far: 42167.2795
Deduct 2450 from 2900 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Let's proceed to step 13:
The number 490 fits into 4500 9 times, leaving a remainder of 90.
Record the quotient 9 as the next digit in the result. 
Result so far: 42167.27959
Subtract 4410 from 4500 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 14:
490 can be fit into 900 1 times, resulting in a remainder of 410.
Use 1 as the next digit of our solution. 
Result so far: 42167.279591
If we subtract 490 from 900, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Advancing to step 15:
4100 divided by 490 is 8 with a remainder of 180.
The number 8 becomes the next digit in our result. 
Result so far: 42167.2795918
Deduct 3920 from 4100 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 16:
490 goes into 1800 3 times with a remainder of 330.
Put 3 as the next digit of the answer. 
Result so far: 42167.27959183
If we subtract 1470 from 1800, we get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

The final outcome is 42167.27959183, with a leftover of 3.3e-07.