We divide 90599210 by 259
The aim is to understand the frequency of 259 in 90599210.

Moving on to step 1:
259 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 259

Step 2:
90 divided by 259 is 0 with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Append the next digit (5) from the dividend to 90 and continue with: 905 / 259

Going ahead to step 3:
259 goes into 905 3 times with a remainder of 128.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 777 from 905 leaves us with 128.
Grab the next digit (9) from the dividend, add it to 128, then carry on: 1289 / 259

Step 4:
1289 divided by 259 is 4 with a remainder of 253.
The next digit of our result is 4. 
Result so far: 34.0
Subtracting 1036 from 1289 leaves us with 253.
Fetch the next digit (9) from the dividend, attach it to 253 and continue: 2539 / 259

Going ahead to step 5:
2539 divided by 259 is 9 with a remainder of 208.
Use 9 as the next digit of our solution. 
Result so far: 349.0
If we subtract 2331 from 2539, we get 208.
Take the next digit (2) from the dividend and append it to 208, then repeat: 2082 / 259

Let's proceed to step 6:
259 goes into 2082 8 times with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 3498.0
The remainder is 10 after subtracting 2072 from 2082.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 259

Going ahead to step 7:
The number 259 fits into 101 0 times, leaving a remainder of 101.
The next digit of our result is 0. 
Result so far: 34980.0
Subtract 0 from 101 to get 101.
Fetch the next digit (0) from the dividend, attach it to 101 and continue: 1010 / 259

Moving on to step 8:
If we divide 1010 by 259, we get 3 and a remainder of 233.
Record the quotient 3 as the next digit in the result. 
Result so far: 349803.0
Subtracting 777 from 1010 leaves us with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Going ahead to step 9:
The number 259 fits into 2330 8 times, leaving a remainder of 258.
The next digit of our result is 8. 
Result so far: 349803.8
Subtracting 2072 from 2330 leaves us with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Step 10:
2580 divided by 259 is 9 with a remainder of 249.
Use 9 as the next digit of our solution. 
Result so far: 349803.89
The remainder is 249 after subtracting 2331 from 2580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Advancing to step 11:
The number 259 fits into 2490 9 times, leaving a remainder of 159.
Record the quotient 9 as the next digit in the result. 
Result so far: 349803.899
Deduct 2331 from 2490 and we're left with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

The quotient of the division is 349803.899, and the remainder is 0.0159.