66975102 ÷ 879 
Our goal is to divide 66975102 by 879.

Step 1:
When dividing 6 by 879, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 879

Step 2:
879 goes into 66 0 times with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Bring next digit (9) of the dividend behind the 66 and repeat the process: 669 / 879

Let's proceed to step 3:
The number 879 fits into 669 0 times, leaving a remainder of 669.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 669 to get 669.
Fetch the next digit (7) from the dividend, attach it to 669 and continue: 6697 / 879

Moving on to step 4:
The number 879 fits into 6697 7 times, leaving a remainder of 544.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 6153 away from 6697, we end up with 544.
Bring next digit (5) of the dividend behind the 544 and repeat the process: 5445 / 879

Let's proceed to step 5:
If we divide 5445 by 879, we get 6 and a remainder of 171.
Use 6 as the next digit of our solution. 
Result so far: 76.0
If we subtract 5274 from 5445, we get 171.
Include the next digit (1) from the dividend after 171, then repeat: 1711 / 879

Step 6:
If we divide 1711 by 879, we get 1 and a remainder of 832.
Write down 1 as next digit of the result. 
Result so far: 761.0
Deduct 879 from 1711 and we're left with 832.
Append the next digit (0) from the dividend to 832 and continue with: 8320 / 879

Going ahead to step 7:
879 can be fit into 8320 9 times, resulting in a remainder of 409.
Record the quotient 9 as the next digit in the result. 
Result so far: 7619.0
Deduct 7911 from 8320 and we're left with 409.
Include the next digit (2) from the dividend after 409, then repeat: 4092 / 879

Going ahead to step 8:
879 can be fit into 4092 4 times, resulting in a remainder of 576.
The next digit of our result is 4. 
Result so far: 76194.0
Subtracting 3516 from 4092 leaves us with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

On to step 9:
The number 879 fits into 5760 6 times, leaving a remainder of 486.
The next digit of our result is 6. 
Result so far: 76194.6
The remainder is 486 after subtracting 5274 from 5760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Let's proceed to step 10:
879 can be fit into 4860 5 times, resulting in a remainder of 465.
Write down 5 as next digit of the result. 
Result so far: 76194.65
Subtracting 4395 from 4860 leaves us with 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

Step 11:
If we divide 4650 by 879, we get 5 and a remainder of 255.
Use 5 as the next digit of our solution. 
Result so far: 76194.655
Deduct 4395 from 4650 and we're left with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

After the division, we end up with 76194.655 and a remainder of 0.0255.