17998507 divided by 289 
The aim is to understand the frequency of 289 in 17998507.

Going ahead to step 1:
289 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 289

Let's proceed to step 2:
289 can be fit into 17 0 times, resulting in a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 289

Advancing to step 3:
If we divide 179 by 289, we get 0 and a remainder of 179.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 179 and we're left with 179.
Fetch the next digit (9) from the dividend, attach it to 179 and continue: 1799 / 289

On to step 4:
289 goes into 1799 6 times with a remainder of 65.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtract 1734 from 1799 to get 65.
Bring next digit (8) of the dividend behind the 65 and repeat the process: 658 / 289

Let's proceed to step 5:
The number 289 fits into 658 2 times, leaving a remainder of 80.
Put 2 as the next digit of the answer. 
Result so far: 62.0
The remainder is 80 after subtracting 578 from 658.
Bring next digit (5) of the dividend behind the 80 and repeat the process: 805 / 289

Going ahead to step 6:
If we divide 805 by 289, we get 2 and a remainder of 227.
Record the quotient 2 as the next digit in the result. 
Result so far: 622.0
Deduct 578 from 805 and we're left with 227.
Fetch the next digit (0) from the dividend, attach it to 227 and continue: 2270 / 289

Step 7:
The number 289 fits into 2270 7 times, leaving a remainder of 247.
Record the quotient 7 as the next digit in the result. 
Result so far: 6227.0
If we subtract 2023 from 2270, we get 247.
Bring next digit (7) of the dividend behind the 247 and repeat the process: 2477 / 289

Moving on to step 8:
289 goes into 2477 8 times with a remainder of 165.
Record the quotient 8 as the next digit in the result. 
Result so far: 62278.0
Subtract 2312 from 2477 to get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Moving on to step 9:
When dividing 1650 by 289, we get 5 with a remainder of 205.
Use 5 as the next digit of our solution. 
Result so far: 62278.5
Deduct 1445 from 1650 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

On to step 10:
289 can be fit into 2050 7 times, resulting in a remainder of 27.
The number 7 becomes the next digit in our result. 
Result so far: 62278.57
If we subtract 2023 from 2050, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 11:
270 divided by 289 is 0 with a remainder of 270.
Record the quotient 0 as the next digit in the result. 
Result so far: 62278.57
The remainder is 270 after subtracting 0 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

On to step 12:
289 goes into 2700 9 times with a remainder of 99.
The next digit of our result is 9. 
Result so far: 62278.5709
Subtract 2601 from 2700 to get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Let's proceed to step 13:
990 divided by 289 is 3 with a remainder of 123.
Write down 3 as next digit of the result. 
Result so far: 62278.57093
Subtracting 867 from 990 leaves us with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 14:
289 goes into 1230 4 times with a remainder of 74.
Write down 4 as next digit of the result. 
Result so far: 62278.570934
Subtracting 1156 from 1230 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 15:
289 can be fit into 740 2 times, resulting in a remainder of 162.
The next digit of our result is 2. 
Result so far: 62278.5709342
Subtracting 578 from 740 leaves us with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Let's proceed to step 16:
1620 divided by 289 is 5 with a remainder of 175.
Use 5 as the next digit of our solution. 
Result so far: 62278.57093425
If we subtract 1445 from 1620, we get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

The final outcome is 62278.57093425, with a leftover of 1.75e-07.