We're dividing 1242645 by 263 
Our goal is to divide 1242645 by 263.

Going ahead to step 1:
The number 263 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 263

Step 2:
12 divided by 263 is 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 263

Going ahead to step 3:
263 goes into 124 0 times with a remainder of 124.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 124 after subtracting 0 from 124.
Append the next digit (2) from the dividend to 124 and continue with: 1242 / 263

Let's proceed to step 4:
263 goes into 1242 4 times with a remainder of 190.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 190 after subtracting 1052 from 1242.
Grab the next digit (6) from the dividend, add it to 190, then carry on: 1906 / 263

Let's proceed to step 5:
If we divide 1906 by 263, we get 7 and a remainder of 65.
Write down 7 as next digit of the result. 
Result so far: 47.0
If we take 1841 away from 1906, we end up with 65.
Fetch the next digit (4) from the dividend, attach it to 65 and continue: 654 / 263

Moving on to step 6:
If we divide 654 by 263, we get 2 and a remainder of 128.
Use 2 as the next digit of our solution. 
Result so far: 472.0
The remainder is 128 after subtracting 526 from 654.
Grab the next digit (5) from the dividend, add it to 128, then carry on: 1285 / 263

Moving on to step 7:
263 can be fit into 1285 4 times, resulting in a remainder of 233.
The number 4 becomes the next digit in our result. 
Result so far: 4724.0
Deduct 1052 from 1285 and we're left 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.

On to step 8:
2330 divided by 263 is 8 with a remainder of 226.
Put 8 as the next digit of the answer. 
Result so far: 4724.8
Deduct 2104 from 2330 and we're left with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Moving on to step 9:
If we divide 2260 by 263, we get 8 and a remainder of 156.
The next digit of our result is 8. 
Result so far: 4724.88
The remainder is 156 after subtracting 2104 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

The final result is 4724.88 with a remainder of 0.156.