98660420 divided by 490 
The aim is to understand the frequency of 490 in 98660420.

On to step 1:
490 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 490

Step 2:
490 can be fit into 98 0 times, resulting in a remainder of 98.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 98 and we're left with 98.
Take the next digit (6) from the dividend and append it to 98, then repeat: 986 / 490

Going ahead to step 3:
986 divided by 490 is 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 980 away from 986, we end up with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 490

Step 4:
When dividing 66 by 490, we get 0 with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we subtract 0 from 66, we get 66.
Grab the next digit (0) from the dividend, add it to 66, then carry on: 660 / 490

Step 5:
490 goes into 660 1 times with a remainder of 170.
Put 1 as the next digit of the answer. 
Result so far: 201.0
Subtracting 490 from 660 leaves us with 170.
Bring next digit (4) of the dividend behind the 170 and repeat the process: 1704 / 490

Advancing to step 6:
490 can be fit into 1704 3 times, resulting in a remainder of 234.
The number 3 becomes the next digit in our result. 
Result so far: 2013.0
Deduct 1470 from 1704 and we're left with 234.
Bring next digit (2) of the dividend behind the 234 and repeat the process: 2342 / 490

Step 7:
The number 490 fits into 2342 4 times, leaving a remainder of 382.
The number 4 becomes the next digit in our result. 
Result so far: 20134.0
Deduct 1960 from 2342 and we're left with 382.
Bring next digit (0) of the dividend behind the 382 and repeat the process: 3820 / 490

Advancing to step 8:
490 can be fit into 3820 7 times, resulting in a remainder of 390.
The next digit of our result is 7. 
Result so far: 201347.0
Deduct 3430 from 3820 and we're left 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.

Step 9:
The number 490 fits into 3900 7 times, leaving a remainder of 470.
Use 7 as the next digit of our solution. 
Result so far: 201347.7
Subtracting 3430 from 3900 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.

Advancing to step 10:
490 goes into 4700 9 times with a remainder of 290.
The next digit of our result is 9. 
Result so far: 201347.79
If we subtract 4410 from 4700, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Advancing to step 11:
2900 divided by 490 is 5 with a remainder of 450.
Put 5 as the next digit of the answer. 
Result so far: 201347.795
Subtracting 2450 from 2900 leaves us 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 12:
When dividing 4500 by 490, we get 9 with a remainder of 90.
The next digit of our result is 9. 
Result so far: 201347.7959
If we subtract 4410 from 4500, we 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.

Advancing to step 13:
490 can be fit into 900 1 times, resulting in a remainder of 410.
Write down 1 as next digit of the result. 
Result so far: 201347.79591
Deduct 490 from 900 and we're left with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Going ahead to step 14:
490 can be fit into 4100 8 times, resulting in a remainder of 180.
The next digit of our result is 8. 
Result so far: 201347.795918
The remainder is 180 after subtracting 3920 from 4100.
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 15:
490 can be fit into 1800 3 times, resulting in a remainder of 330.
The number 3 becomes the next digit in our result. 
Result so far: 201347.7959183
Subtracting 1470 from 1800 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Going ahead to step 16:
490 goes into 3300 6 times with a remainder of 360.
Put 6 as the next digit of the answer. 
Result so far: 201347.79591836
Deduct 2940 from 3300 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

After the division, we end up with 201347.79591836 and a remainder of 3.6e-07.