We look at the division of 86404364 by 289 
We're looking to find how many times 289 goes into 86404364.

Moving on to step 1:
The number 289 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 289

Going ahead to step 2:
86 divided by 289 is 0 with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Bring next digit (4) of the dividend behind the 86 and repeat the process: 864 / 289

Step 3:
289 can be fit into 864 2 times, resulting in a remainder of 286.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 578 from 864 to get 286.
Fetch the next digit (0) from the dividend, attach it to 286 and continue: 2860 / 289

On to step 4:
When dividing 2860 by 289, we get 9 with a remainder of 259.
Use 9 as the next digit of our solution. 
Result so far: 29.0
If we subtract 2601 from 2860, we get 259.
Bring next digit (4) of the dividend behind the 259 and repeat the process: 2594 / 289

Moving on to step 5:
2594 divided by 289 is 8 with a remainder of 282.
Use 8 as the next digit of our solution. 
Result so far: 298.0
Subtracting 2312 from 2594 leaves us with 282.
Append the next digit (3) from the dividend to 282 and continue with: 2823 / 289

Advancing to step 6:
When dividing 2823 by 289, we get 9 with a remainder of 222.
Write down 9 as next digit of the result. 
Result so far: 2989.0
Subtracting 2601 from 2823 leaves us with 222.
Fetch the next digit (6) from the dividend, attach it to 222 and continue: 2226 / 289

Let's proceed to step 7:
289 goes into 2226 7 times with a remainder of 203.
Write down 7 as next digit of the result. 
Result so far: 29897.0
Subtract 2023 from 2226 to get 203.
Append the next digit (4) from the dividend to 203 and continue with: 2034 / 289

Advancing to step 8:
If we divide 2034 by 289, we get 7 and a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 298977.0
Subtracting 2023 from 2034 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 9:
289 can be fit into 110 0 times, resulting in a remainder of 110.
The next digit of our result is 0. 
Result so far: 298977.0
Subtract 0 from 110 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 10:
1100 divided by 289 is 3 with a remainder of 233.
Record the quotient 3 as the next digit in the result. 
Result so far: 298977.03
Subtracting 867 from 1100 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.

Step 11:
If we divide 2330 by 289, we get 8 and a remainder of 18.
The next digit of our result is 8. 
Result so far: 298977.038
The remainder is 18 after subtracting 2312 from 2330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 12:
289 can be fit into 180 0 times, resulting in a remainder of 180.
Write down 0 as next digit of the result. 
Result so far: 298977.038
If we take 0 away from 180, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 13:
1800 divided by 289 is 6 with a remainder of 66.
Put 6 as the next digit of the answer. 
Result so far: 298977.03806
If we take 1734 away from 1800, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 14:
The number 289 fits into 660 2 times, leaving a remainder of 82.
The next digit of our result is 2. 
Result so far: 298977.038062
Subtracting 578 from 660 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 15:
289 goes into 820 2 times with a remainder of 242.
The next digit of our result is 2. 
Result so far: 298977.0380622
Subtracting 578 from 820 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.

Our division results in 298977.0380622 with a remaining 2.42e-06.