90023037 ÷ 259 
The aim is to understand the frequency of 259 in 90023037.

Step 1:
259 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 259

Step 2:
If we divide 90 by 259, we get 0 and 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.
Take the next digit (0) from the dividend and append it to 90, then repeat: 900 / 259

Moving on to step 3:
When dividing 900 by 259, we get 3 with a remainder of 123.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 777 from 900, we get 123.
Fetch the next digit (2) from the dividend, attach it to 123 and continue: 1232 / 259

Moving on to step 4:
1232 divided by 259 is 4 with a remainder of 196.
The next digit of our result is 4. 
Result so far: 34.0
Deduct 1036 from 1232 and we're left with 196.
Fetch the next digit (3) from the dividend, attach it to 196 and continue: 1963 / 259

Advancing to step 5:
259 goes into 1963 7 times with a remainder of 150.
Use 7 as the next digit of our solution. 
Result so far: 347.0
Subtracting 1813 from 1963 leaves us with 150.
Include the next digit (0) from the dividend after 150, then repeat: 1500 / 259

On to step 6:
259 goes into 1500 5 times with a remainder of 205.
Record the quotient 5 as the next digit in the result. 
Result so far: 3475.0
The remainder is 205 after subtracting 1295 from 1500.
Fetch the next digit (3) from the dividend, attach it to 205 and continue: 2053 / 259

Step 7:
2053 divided by 259 is 7 with a remainder of 240.
Use 7 as the next digit of our solution. 
Result so far: 34757.0
If we subtract 1813 from 2053, we get 240.
Grab the next digit (7) from the dividend, add it to 240, then carry on: 2407 / 259

Moving on to step 8:
The number 259 fits into 2407 9 times, leaving a remainder of 76.
Use 9 as the next digit of our solution. 
Result so far: 347579.0
Deduct 2331 from 2407 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 9:
259 can be fit into 760 2 times, resulting in a remainder of 242.
Put 2 as the next digit of the answer. 
Result so far: 347579.2
Subtracting 518 from 760 leaves us with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Going ahead to step 10:
259 can be fit into 2420 9 times, resulting in a remainder of 89.
Put 9 as the next digit of the answer. 
Result so far: 347579.29
The remainder is 89 after subtracting 2331 from 2420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

On to step 11:
If we divide 890 by 259, we get 3 and a remainder of 113.
Put 3 as the next digit of the answer. 
Result so far: 347579.293
Subtract 777 from 890 to get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Moving on to step 12:
When dividing 1130 by 259, we get 4 with a remainder of 94.
The next digit of our result is 4. 
Result so far: 347579.2934
The remainder is 94 after subtracting 1036 from 1130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Let's proceed to step 13:
If we divide 940 by 259, we get 3 and a remainder of 163.
Use 3 as the next digit of our solution. 
Result so far: 347579.29343
If we take 777 away from 940, we end up with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Let's proceed to step 14:
1630 divided by 259 is 6 with a remainder of 76.
Use 6 as the next digit of our solution. 
Result so far: 347579.293436
Subtracting 1554 from 1630 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 15:
259 goes into 760 2 times with a remainder of 242.
Put 2 as the next digit of the answer. 
Result so far: 347579.2934362
Deduct 518 from 760 and we're left with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Going ahead to step 16:
2420 divided by 259 is 9 with a remainder of 89.
Record the quotient 9 as the next digit in the result. 
Result so far: 347579.29343629
If we take 2331 away from 2420, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

The final result is 347579.29343629 with a remainder of 8.9e-08.