65999221 divided by 879 
Let's see how many times 879 fits into 65999221.

Going ahead to step 1:
879 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 879

Moving on to step 2:
879 goes into 65 0 times with a remainder of 65.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 65 and we're left with 65.
Bring next digit (9) of the dividend behind the 65 and repeat the process: 659 / 879

Step 3:
879 goes into 659 0 times with a remainder of 659.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 659 after subtracting 0 from 659.
Fetch the next digit (9) from the dividend, attach it to 659 and continue: 6599 / 879

On to step 4:
The number 879 fits into 6599 7 times, leaving a remainder of 446.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 6153 from 6599 leaves us with 446.
Include the next digit (9) from the dividend after 446, then repeat: 4469 / 879

Advancing to step 5:
If we divide 4469 by 879, we get 5 and a remainder of 74.
Put 5 as the next digit of the answer. 
Result so far: 75.0
The remainder is 74 after subtracting 4395 from 4469.
Fetch the next digit (2) from the dividend, attach it to 74 and continue: 742 / 879

Let's proceed to step 6:
742 divided by 879 is 0 with a remainder of 742.
Record the quotient 0 as the next digit in the result. 
Result so far: 750.0
Subtract 0 from 742 to get 742.
Bring next digit (2) of the dividend behind the 742 and repeat the process: 7422 / 879

On to step 7:
The number 879 fits into 7422 8 times, leaving a remainder of 390.
Record the quotient 8 as the next digit in the result. 
Result so far: 7508.0
If we subtract 7032 from 7422, we get 390.
Fetch the next digit (1) from the dividend, attach it to 390 and continue: 3901 / 879

Moving on to step 8:
When dividing 3901 by 879, we get 4 with a remainder of 385.
Use 4 as the next digit of our solution. 
Result so far: 75084.0
Subtracting 3516 from 3901 leaves us with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Going ahead to step 9:
If we divide 3850 by 879, we get 4 and a remainder of 334.
Write down 4 as next digit of the result. 
Result so far: 75084.4
Subtract 3516 from 3850 to get 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Moving on to step 10:
3340 divided by 879 is 3 with a remainder of 703.
Put 3 as the next digit of the answer. 
Result so far: 75084.43
Subtract 2637 from 3340 to get 703.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7030, and continue the process.

Advancing to step 11:
7030 divided by 879 is 7 with a remainder of 877.
The next digit of our result is 7. 
Result so far: 75084.437
If we take 6153 away from 7030, we end up with 877.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8770, and continue the process.

Step 12:
8770 divided by 879 is 9 with a remainder of 859.
Write down 9 as next digit of the result. 
Result so far: 75084.4379
If we take 7911 away from 8770, we end up with 859.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8590, and continue the process.

Step 13:
The number 879 fits into 8590 9 times, leaving a remainder of 679.
Use 9 as the next digit of our solution. 
Result so far: 75084.43799
Subtracting 7911 from 8590 leaves us with 679.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6790, and continue the process.

The final result is 75084.43799 with a remainder of 0.000679.