23420688 ÷ 289 
We want to divide 23420688 by 289.

Going ahead to step 1:
289 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 289

On to step 2:
When dividing 23 by 289, we get 0 with a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 23, we end up with 23.
Bring next digit (4) of the dividend behind the 23 and repeat the process: 234 / 289

Advancing to step 3:
289 can be fit into 234 0 times, resulting in a remainder of 234.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 234 to get 234.
Take the next digit (2) from the dividend and append it to 234, then repeat: 2342 / 289

Going ahead to step 4:
If we divide 2342 by 289, we get 8 and a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 2312 from 2342 leaves us with 30.
Fetch the next digit (0) from the dividend, attach it to 30 and continue: 300 / 289

Advancing to step 5:
289 can be fit into 300 1 times, resulting in a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 81.0
If we subtract 289 from 300, we get 11.
Include the next digit (6) from the dividend after 11, then repeat: 116 / 289

Advancing to step 6:
116 divided by 289 is 0 with a remainder of 116.
Write down 0 as next digit of the result. 
Result so far: 810.0
Subtract 0 from 116 to get 116.
Grab the next digit (8) from the dividend, add it to 116, then carry on: 1168 / 289

Going ahead to step 7:
If we divide 1168 by 289, we get 4 and a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 8104.0
Subtract 1156 from 1168 to get 12.
Grab the next digit (8) from the dividend, add it to 12, then carry on: 128 / 289

Step 8:
If we divide 128 by 289, we get 0 and a remainder of 128.
Use 0 as the next digit of our solution. 
Result so far: 81040.0
Subtract 0 from 128 to get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 9:
289 can be fit into 1280 4 times, resulting in a remainder of 124.
Record the quotient 4 as the next digit in the result. 
Result so far: 81040.4
Subtracting 1156 from 1280 leaves us with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 10:
When dividing 1240 by 289, we get 4 with a remainder of 84.
The next digit of our result is 4. 
Result so far: 81040.44
If we subtract 1156 from 1240, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

After the division, we end up with 81040.44 and a remainder of 0.084.