66270563 ÷ 145 
Our goal is to divide 66270563 by 145.

Advancing to step 1:
6 divided by 145 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 145

Going ahead to step 2:
If we divide 66 by 145, we get 0 and a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Append the next digit (2) from the dividend to 66 and continue with: 662 / 145

Step 3:
662 divided by 145 is 4 with a remainder of 82.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 580 from 662 leaves us with 82.
Bring next digit (7) of the dividend behind the 82 and repeat the process: 827 / 145

Moving on to step 4:
827 divided by 145 is 5 with a remainder of 102.
Put 5 as the next digit of the answer. 
Result so far: 45.0
Subtracting 725 from 827 leaves us with 102.
Fetch the next digit (0) from the dividend, attach it to 102 and continue: 1020 / 145

Moving on to step 5:
When dividing 1020 by 145, we get 7 with a remainder of 5.
The next digit of our result is 7. 
Result so far: 457.0
If we subtract 1015 from 1020, we get 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 145

On to step 6:
If we divide 55 by 145, we get 0 and a remainder of 55.
The next digit of our result is 0. 
Result so far: 4570.0
Deduct 0 from 55 and we're left with 55.
Fetch the next digit (6) from the dividend, attach it to 55 and continue: 556 / 145

On to step 7:
556 divided by 145 is 3 with a remainder of 121.
The number 3 becomes the next digit in our result. 
Result so far: 45703.0
Deduct 435 from 556 and we're left with 121.
Grab the next digit (3) from the dividend, add it to 121, then carry on: 1213 / 145

Let's proceed to step 8:
The number 145 fits into 1213 8 times, leaving a remainder of 53.
The number 8 becomes the next digit in our result. 
Result so far: 457038.0
If we take 1160 away from 1213, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 9:
The number 145 fits into 530 3 times, leaving a remainder of 95.
The number 3 becomes the next digit in our result. 
Result so far: 457038.3
Subtracting 435 from 530 leaves us with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 10:
145 can be fit into 950 6 times, resulting in a remainder of 80.
Put 6 as the next digit of the answer. 
Result so far: 457038.36
If we subtract 870 from 950, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 11:
145 goes into 800 5 times with a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 457038.365
The remainder is 75 after subtracting 725 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 12:
If we divide 750 by 145, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 457038.3655
The remainder is 25 after subtracting 725 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 457038.3655 with a remainder of 0.00025.