64260631 ÷ 145 
Our goal is to divide 64260631 by 145.

Let's proceed to step 1:
145 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 145

On to step 2:
If we divide 64 by 145, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Take the next digit (2) from the dividend and append it to 64, then repeat: 642 / 145

Step 3:
The number 145 fits into 642 4 times, leaving a remainder of 62.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 580 away from 642, we end up with 62.
Append the next digit (6) from the dividend to 62 and continue with: 626 / 145

Moving on to step 4:
145 goes into 626 4 times with a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 44.0
If we take 580 away from 626, we end up with 46.
Grab the next digit (0) from the dividend, add it to 46, then carry on: 460 / 145

On to step 5:
When dividing 460 by 145, we get 3 with a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 443.0
Deduct 435 from 460 and we're left with 25.
Append the next digit (6) from the dividend to 25 and continue with: 256 / 145

Moving on to step 6:
If we divide 256 by 145, we get 1 and a remainder of 111.
Write down 1 as next digit of the result. 
Result so far: 4431.0
Subtracting 145 from 256 leaves us with 111.
Take the next digit (3) from the dividend and append it to 111, then repeat: 1113 / 145

Advancing to step 7:
1113 divided by 145 is 7 with a remainder of 98.
Write down 7 as next digit of the result. 
Result so far: 44317.0
The remainder is 98 after subtracting 1015 from 1113.
Grab the next digit (1) from the dividend, add it to 98, then carry on: 981 / 145

Step 8:
When dividing 981 by 145, we get 6 with a remainder of 111.
The next digit of our result is 6. 
Result so far: 443176.0
Subtracting 870 from 981 leaves us with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Advancing to step 9:
145 goes into 1110 7 times with a remainder of 95.
Use 7 as the next digit of our solution. 
Result so far: 443176.7
Subtract 1015 from 1110 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 10:
950 divided by 145 is 6 with a remainder of 80.
Record the quotient 6 as the next digit in the result. 
Result so far: 443176.76
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.

On to step 11:
When dividing 800 by 145, we get 5 with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 443176.765
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.

Going ahead to step 12:
145 can be fit into 750 5 times, resulting in a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 443176.7655
If we take 725 away from 750, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

After the division, we end up with 443176.7655 and a remainder of 0.00025.