64584811 ÷ 631 
Our goal is to divide 64584811 by 631.

Going ahead to step 1:
The number 631 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 631

Advancing to step 2:
The number 631 fits into 64 0 times, leaving a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Append the next digit (5) from the dividend to 64 and continue with: 645 / 631

Moving on to step 3:
631 can be fit into 645 1 times, resulting in a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 631 from 645 to get 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 631

Advancing to step 4:
148 divided by 631 is 0 with a remainder of 148.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 148 leaves us with 148.
Grab the next digit (4) from the dividend, add it to 148, then carry on: 1484 / 631

Advancing to step 5:
631 can be fit into 1484 2 times, resulting in a remainder of 222.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
If we take 1262 away from 1484, we end up with 222.
Fetch the next digit (8) from the dividend, attach it to 222 and continue: 2228 / 631

Going ahead to step 6:
If we divide 2228 by 631, we get 3 and a remainder of 335.
Record the quotient 3 as the next digit in the result. 
Result so far: 1023.0
Deduct 1893 from 2228 and we're left with 335.
Include the next digit (1) from the dividend after 335, then repeat: 3351 / 631

Let's proceed to step 7:
3351 divided by 631 is 5 with a remainder of 196.
The next digit of our result is 5. 
Result so far: 10235.0
If we take 3155 away from 3351, we end up with 196.
Fetch the next digit (1) from the dividend, attach it to 196 and continue: 1961 / 631

Let's proceed to step 8:
631 can be fit into 1961 3 times, resulting in a remainder of 68.
Write down 3 as next digit of the result. 
Result so far: 102353.0
If we take 1893 away from 1961, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 9:
The number 631 fits into 680 1 times, leaving a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 102353.1
Deduct 631 from 680 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 10:
631 goes into 490 0 times with a remainder of 490.
Write down 0 as next digit of the result. 
Result so far: 102353.1
The remainder is 490 after subtracting 0 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

On to step 11:
If we divide 4900 by 631, we get 7 and a remainder of 483.
Put 7 as the next digit of the answer. 
Result so far: 102353.107
Subtracting 4417 from 4900 leaves us with 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Step 12:
631 goes into 4830 7 times with a remainder of 413.
Write down 7 as next digit of the result. 
Result so far: 102353.1077
Deduct 4417 from 4830 and we're left with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

The final outcome is 102353.1077, with a leftover of 0.00413.