We look at the division of 64999879 by 641 
We want to figure out the number of times 64999879 can be divided by 641.

Advancing to step 1:
641 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 641

Step 2:
The number 641 fits into 64 0 times, leaving 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.
Include the next digit (9) from the dividend after 64, then repeat: 649 / 641

Step 3:
641 goes into 649 1 times with a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 8 after subtracting 641 from 649.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 641

Advancing to step 4:
89 divided by 641 is 0 with a remainder of 89.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 89 to get 89.
Bring next digit (9) of the dividend behind the 89 and repeat the process: 899 / 641

On to step 5:
The number 641 fits into 899 1 times, leaving a remainder of 258.
Write down 1 as next digit of the result. 
Result so far: 101.0
Subtracting 641 from 899 leaves us with 258.
Fetch the next digit (8) from the dividend, attach it to 258 and continue: 2588 / 641

Let's proceed to step 6:
641 can be fit into 2588 4 times, resulting in a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 1014.0
Deduct 2564 from 2588 and we're left with 24.
Take the next digit (7) from the dividend and append it to 24, then repeat: 247 / 641

Let's proceed to step 7:
641 goes into 247 0 times with a remainder of 247.
Record the quotient 0 as the next digit in the result. 
Result so far: 10140.0
If we subtract 0 from 247, we get 247.
Bring next digit (9) of the dividend behind the 247 and repeat the process: 2479 / 641

Step 8:
When dividing 2479 by 641, we get 3 with a remainder of 556.
Record the quotient 3 as the next digit in the result. 
Result so far: 101403.0
If we take 1923 away from 2479, we end up with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Going ahead to step 9:
641 goes into 5560 8 times with a remainder of 432.
The next digit of our result is 8. 
Result so far: 101403.8
Subtracting 5128 from 5560 leaves us with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Going ahead to step 10:
When dividing 4320 by 641, we get 6 with a remainder of 474.
The next digit of our result is 6. 
Result so far: 101403.86
If we take 3846 away from 4320, we end up with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

On to step 11:
641 can be fit into 4740 7 times, resulting in a remainder of 253.
The next digit of our result is 7. 
Result so far: 101403.867
If we subtract 4487 from 4740, we get 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Advancing to step 12:
If we divide 2530 by 641, we get 3 and a remainder of 607.
Write down 3 as next digit of the result. 
Result so far: 101403.8673
The remainder is 607 after subtracting 1923 from 2530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Moving on to step 13:
The number 641 fits into 6070 9 times, leaving a remainder of 301.
Put 9 as the next digit of the answer. 
Result so far: 101403.86739
Deduct 5769 from 6070 and we're left with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Going ahead to step 14:
When dividing 3010 by 641, we get 4 with a remainder of 446.
Use 4 as the next digit of our solution. 
Result so far: 101403.867394
Subtract 2564 from 3010 to get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Let's proceed to step 15:
641 goes into 4460 6 times with a remainder of 614.
Use 6 as the next digit of our solution. 
Result so far: 101403.8673946
If we take 3846 away from 4460, we end up with 614.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6140, and continue the process.

Moving on to step 16:
641 can be fit into 6140 9 times, resulting in a remainder of 371.
Put 9 as the next digit of the answer. 
Result so far: 101403.86739469
Deduct 5769 from 6140 and we're left with 371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

The final outcome is 101403.86739469, with a leftover of 3.71e-07.