3579590 ÷ 980 
The aim is to understand the frequency of 980 in 3579590.

Moving on to step 1:
When dividing 3 by 980, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 980

Moving on to step 2:
The number 980 fits into 35 0 times, leaving a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Take the next digit (7) from the dividend and append it to 35, then repeat: 357 / 980

On to step 3:
If we divide 357 by 980, we get 0 and a remainder of 357.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 357 to get 357.
Append the next digit (9) from the dividend to 357 and continue with: 3579 / 980

Going ahead to step 4:
3579 divided by 980 is 3 with a remainder of 639.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 639 after subtracting 2940 from 3579.
Take the next digit (5) from the dividend and append it to 639, then repeat: 6395 / 980

Moving on to step 5:
980 can be fit into 6395 6 times, resulting in a remainder of 515.
The next digit of our result is 6. 
Result so far: 36.0
If we take 5880 away from 6395, we end up with 515.
Take the next digit (9) from the dividend and append it to 515, then repeat: 5159 / 980

Let's proceed to step 6:
980 can be fit into 5159 5 times, resulting in a remainder of 259.
Write down 5 as next digit of the result. 
Result so far: 365.0
Deduct 4900 from 5159 and we're left with 259.
Bring next digit (0) of the dividend behind the 259 and repeat the process: 2590 / 980

Step 7:
980 goes into 2590 2 times with a remainder of 630.
Put 2 as the next digit of the answer. 
Result so far: 3652.0
If we subtract 1960 from 2590, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 8:
980 can be fit into 6300 6 times, resulting in a remainder of 420.
Record the quotient 6 as the next digit in the result. 
Result so far: 3652.6
If we subtract 5880 from 6300, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 9:
4200 divided by 980 is 4 with a remainder of 280.
The number 4 becomes the next digit in our result. 
Result so far: 3652.64
If we take 3920 away from 4200, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 10:
The number 980 fits into 2800 2 times, leaving a remainder of 840.
Write down 2 as next digit of the result. 
Result so far: 3652.642
The remainder is 840 after subtracting 1960 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Let's proceed to step 11:
980 can be fit into 8400 8 times, resulting in a remainder of 560.
The next digit of our result is 8. 
Result so far: 3652.6428
If we subtract 7840 from 8400, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 12:
When dividing 5600 by 980, we get 5 with a remainder of 700.
The next digit of our result is 5. 
Result so far: 3652.64285
The remainder is 700 after subtracting 4900 from 5600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 13:
7000 divided by 980 is 7 with a remainder of 140.
The next digit of our result is 7. 
Result so far: 3652.642857
Deduct 6860 from 7000 and we're left with 140.
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 14:
980 goes into 1400 1 times with a remainder of 420.
The number 1 becomes the next digit in our result. 
Result so far: 3652.6428571
Subtract 980 from 1400 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 15:
980 can be fit into 4200 4 times, resulting in a remainder of 280.
Use 4 as the next digit of our solution. 
Result so far: 3652.64285714
Subtract 3920 from 4200 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

The final result is 3652.64285714 with a remainder of 2.8e-07.