We're dividing 98391491 by 259 
Let's see how many times 259 fits into 98391491.

On to step 1:
259 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 259

Advancing to step 2:
259 can be fit into 98 0 times, resulting in a remainder of 98.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 98 after subtracting 0 from 98.
Append the next digit (3) from the dividend to 98 and continue with: 983 / 259

Moving on to step 3:
983 divided by 259 is 3 with a remainder of 206.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 777 from 983, we get 206.
Append the next digit (9) from the dividend to 206 and continue with: 2069 / 259

Advancing to step 4:
If we divide 2069 by 259, we get 7 and a remainder of 256.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtracting 1813 from 2069 leaves us with 256.
Append the next digit (1) from the dividend to 256 and continue with: 2561 / 259

Advancing to step 5:
If we divide 2561 by 259, we get 9 and a remainder of 230.
Put 9 as the next digit of the answer. 
Result so far: 379.0
The remainder is 230 after subtracting 2331 from 2561.
Bring next digit (4) of the dividend behind the 230 and repeat the process: 2304 / 259

Advancing to step 6:
259 can be fit into 2304 8 times, resulting in a remainder of 232.
The number 8 becomes the next digit in our result. 
Result so far: 3798.0
Subtracting 2072 from 2304 leaves us with 232.
Include the next digit (9) from the dividend after 232, then repeat: 2329 / 259

Going ahead to step 7:
The number 259 fits into 2329 8 times, leaving a remainder of 257.
The number 8 becomes the next digit in our result. 
Result so far: 37988.0
Subtracting 2072 from 2329 leaves us with 257.
Include the next digit (1) from the dividend after 257, then repeat: 2571 / 259

Step 8:
2571 divided by 259 is 9 with a remainder of 240.
The next digit of our result is 9. 
Result so far: 379889.0
Deduct 2331 from 2571 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 9:
If we divide 2400 by 259, we get 9 and a remainder of 69.
Record the quotient 9 as the next digit in the result. 
Result so far: 379889.9
If we subtract 2331 from 2400, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 10:
When dividing 690 by 259, we get 2 with a remainder of 172.
Use 2 as the next digit of our solution. 
Result so far: 379889.92
Subtracting 518 from 690 leaves us with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Step 11:
The number 259 fits into 1720 6 times, leaving a remainder of 166.
Record the quotient 6 as the next digit in the result. 
Result so far: 379889.926
Subtract 1554 from 1720 to get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Step 12:
The number 259 fits into 1660 6 times, leaving a remainder of 106.
The next digit of our result is 6. 
Result so far: 379889.9266
Deduct 1554 from 1660 and we're left with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

After the division, we end up with 379889.9266 and a remainder of 0.00106.