21735798 ÷ 590 
The aim is to understand the frequency of 590 in 21735798.

Let's proceed to step 1:
2 divided by 590 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 590

Advancing to step 2:
590 goes into 21 0 times with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (7) from the dividend after 21, then repeat: 217 / 590

On to step 3:
The number 590 fits into 217 0 times, leaving a remainder of 217.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 217, we end up with 217.
Fetch the next digit (3) from the dividend, attach it to 217 and continue: 2173 / 590

On to step 4:
If we divide 2173 by 590, we get 3 and a remainder of 403.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 1770 away from 2173, we end up with 403.
Fetch the next digit (5) from the dividend, attach it to 403 and continue: 4035 / 590

Step 5:
When dividing 4035 by 590, we get 6 with a remainder of 495.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
Subtract 3540 from 4035 to get 495.
Append the next digit (7) from the dividend to 495 and continue with: 4957 / 590

Step 6:
4957 divided by 590 is 8 with a remainder of 237.
The next digit of our result is 8. 
Result so far: 368.0
The remainder is 237 after subtracting 4720 from 4957.
Bring next digit (9) of the dividend behind the 237 and repeat the process: 2379 / 590

Advancing to step 7:
590 can be fit into 2379 4 times, resulting in a remainder of 19.
The number 4 becomes the next digit in our result. 
Result so far: 3684.0
If we take 2360 away from 2379, we end up with 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 590

Step 8:
The number 590 fits into 198 0 times, leaving a remainder of 198.
Write down 0 as next digit of the result. 
Result so far: 36840.0
Deduct 0 from 198 and we're left with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Moving on to step 9:
1980 divided by 590 is 3 with a remainder of 210.
Put 3 as the next digit of the answer. 
Result so far: 36840.3
Deduct 1770 from 1980 and we're left 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.

Moving on to step 10:
The number 590 fits into 2100 3 times, leaving a remainder of 330.
Use 3 as the next digit of our solution. 
Result so far: 36840.33
The remainder is 330 after subtracting 1770 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

After the division, we end up with 36840.33 and a remainder of 0.33.