We look at the division of 80889387 by 263 
Let's see how many times 263 fits into 80889387.

Step 1:
If we divide 8 by 263, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 263

Advancing to step 2:
When dividing 80 by 263, we get 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Take the next digit (8) from the dividend and append it to 80, then repeat: 808 / 263

On to step 3:
The number 263 fits into 808 3 times, leaving a remainder of 19.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 789 from 808 and we're left with 19.
Fetch the next digit (8) from the dividend, attach it to 19 and continue: 198 / 263

Advancing to step 4:
198 divided by 263 is 0 with a remainder of 198.
Write down 0 as next digit of the result. 
Result so far: 30.0
If we subtract 0 from 198, we get 198.
Fetch the next digit (9) from the dividend, attach it to 198 and continue: 1989 / 263

Step 5:
1989 divided by 263 is 7 with a remainder of 148.
The number 7 becomes the next digit in our result. 
Result so far: 307.0
Subtracting 1841 from 1989 leaves us with 148.
Bring next digit (3) of the dividend behind the 148 and repeat the process: 1483 / 263

Moving on to step 6:
263 can be fit into 1483 5 times, resulting in a remainder of 168.
Write down 5 as next digit of the result. 
Result so far: 3075.0
If we subtract 1315 from 1483, we get 168.
Take the next digit (8) from the dividend and append it to 168, then repeat: 1688 / 263

Moving on to step 7:
When dividing 1688 by 263, we get 6 with a remainder of 110.
The next digit of our result is 6. 
Result so far: 30756.0
Deduct 1578 from 1688 and we're left with 110.
Fetch the next digit (7) from the dividend, attach it to 110 and continue: 1107 / 263

Moving on to step 8:
The number 263 fits into 1107 4 times, leaving a remainder of 55.
The next digit of our result is 4. 
Result so far: 307564.0
Subtract 1052 from 1107 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 9:
The number 263 fits into 550 2 times, leaving a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 307564.2
Subtract 526 from 550 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
When dividing 240 by 263, we get 0 with a remainder of 240.
Write down 0 as next digit of the result. 
Result so far: 307564.2
The remainder is 240 after subtracting 0 from 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 11:
If we divide 2400 by 263, we get 9 and a remainder of 33.
Write down 9 as next digit of the result. 
Result so far: 307564.209
If we take 2367 away from 2400, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 12:
The number 263 fits into 330 1 times, leaving a remainder of 67.
The next digit of our result is 1. 
Result so far: 307564.2091
Subtracting 263 from 330 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 13:
263 goes into 670 2 times with a remainder of 144.
Write down 2 as next digit of the result. 
Result so far: 307564.20912
If we take 526 away from 670, we end up with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Let's proceed to step 14:
When dividing 1440 by 263, we get 5 with a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 307564.209125
If we subtract 1315 from 1440, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 15:
When dividing 1250 by 263, we get 4 with a remainder of 198.
Put 4 as the next digit of the answer. 
Result so far: 307564.2091254
Subtract 1052 from 1250 to get 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Moving on to step 16:
If we divide 1980 by 263, we get 7 and a remainder of 139.
Put 7 as the next digit of the answer. 
Result so far: 307564.20912547
If we take 1841 away from 1980, we end up with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

The final outcome is 307564.20912547, with a leftover of 1.39e-07.