We're dividing 69628909 by 490 
The aim is to understand the frequency of 490 in 69628909.

Advancing to step 1:
If we divide 6 by 490, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 490

Going ahead to step 2:
If we divide 69 by 490, we get 0 and a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 69, we get 69.
Take the next digit (6) from the dividend and append it to 69, then repeat: 696 / 490

Going ahead to step 3:
490 goes into 696 1 times with a remainder of 206.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 490 from 696 and we're left with 206.
Include the next digit (2) from the dividend after 206, then repeat: 2062 / 490

Step 4:
2062 divided by 490 is 4 with a remainder of 102.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we subtract 1960 from 2062, we get 102.
Include the next digit (8) from the dividend after 102, then repeat: 1028 / 490

Let's proceed to step 5:
When dividing 1028 by 490, we get 2 with a remainder of 48.
The next digit of our result is 2. 
Result so far: 142.0
Deduct 980 from 1028 and we're left with 48.
Fetch the next digit (9) from the dividend, attach it to 48 and continue: 489 / 490

Step 6:
490 goes into 489 0 times with a remainder of 489.
Put 0 as the next digit of the answer. 
Result so far: 1420.0
Subtracting 0 from 489 leaves us with 489.
Bring next digit (0) of the dividend behind the 489 and repeat the process: 4890 / 490

Going ahead to step 7:
4890 divided by 490 is 9 with a remainder of 480.
The next digit of our result is 9. 
Result so far: 14209.0
If we take 4410 away from 4890, we end up with 480.
Append the next digit (9) from the dividend to 480 and continue with: 4809 / 490

Let's proceed to step 8:
If we divide 4809 by 490, we get 9 and a remainder of 399.
Put 9 as the next digit of the answer. 
Result so far: 142099.0
If we subtract 4410 from 4809, we get 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

On to step 9:
490 goes into 3990 8 times with a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 142099.8
If we take 3920 away from 3990, 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.

On to step 10:
490 can be fit into 700 1 times, resulting in a remainder of 210.
The next digit of our result is 1. 
Result so far: 142099.81
If we take 490 away from 700, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Going ahead to step 11:
The number 490 fits into 2100 4 times, leaving a remainder of 140.
Write down 4 as next digit of the result. 
Result so far: 142099.814
The remainder is 140 after subtracting 1960 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 12:
490 can be fit into 1400 2 times, resulting in a remainder of 420.
Record the quotient 2 as the next digit in the result. 
Result so far: 142099.8142
If we take 980 away from 1400, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 13:
490 can be fit into 4200 8 times, resulting in a remainder of 280.
Use 8 as the next digit of our solution. 
Result so far: 142099.81428
The remainder is 280 after subtracting 3920 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 14:
490 can be fit into 2800 5 times, resulting in a remainder of 350.
Record the quotient 5 as the next digit in the result. 
Result so far: 142099.814285
If we take 2450 away from 2800, we end up with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 15:
490 can be fit into 3500 7 times, resulting in a remainder of 70.
Record the quotient 7 as the next digit in the result. 
Result so far: 142099.8142857
Deduct 3430 from 3500 and we're left 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.

On to step 16:
700 divided by 490 is 1 with a remainder of 210.
Record the quotient 1 as the next digit in the result. 
Result so far: 142099.81428571
Subtracting 490 from 700 leaves us with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The final outcome is 142099.81428571, with a leftover of 2.1e-07.