99878666 ÷ 71 
Let's see how many times 71 fits into 99878666.

On to step 1:
When dividing 9 by 71, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 71

Advancing to step 2:
99 divided by 71 is 1 with a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 28 after subtracting 71 from 99.
Append the next digit (8) from the dividend to 28 and continue with: 288 / 71

Going ahead to step 3:
288 divided by 71 is 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 14.0
The remainder is 4 after subtracting 284 from 288.
Fetch the next digit (7) from the dividend, attach it to 4 and continue: 47 / 71

Let's proceed to step 4:
When dividing 47 by 71, we get 0 with a remainder of 47.
Record the quotient 0 as the next digit in the result. 
Result so far: 140.0
If we subtract 0 from 47, we get 47.
Bring next digit (8) of the dividend behind the 47 and repeat the process: 478 / 71

On to step 5:
478 divided by 71 is 6 with a remainder of 52.
Use 6 as the next digit of our solution. 
Result so far: 1406.0
Deduct 426 from 478 and we're left with 52.
Bring next digit (6) of the dividend behind the 52 and repeat the process: 526 / 71

Going ahead to step 6:
71 can be fit into 526 7 times, resulting in a remainder of 29.
Write down 7 as next digit of the result. 
Result so far: 14067.0
Subtract 497 from 526 to get 29.
Fetch the next digit (6) from the dividend, attach it to 29 and continue: 296 / 71

Going ahead to step 7:
296 divided by 71 is 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 140674.0
Deduct 284 from 296 and we're left with 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 71

Going ahead to step 8:
When dividing 126 by 71, we get 1 with a remainder of 55.
Use 1 as the next digit of our solution. 
Result so far: 1406741.0
Deduct 71 from 126 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 9:
The number 71 fits into 550 7 times, leaving a remainder of 53.
Record the quotient 7 as the next digit in the result. 
Result so far: 1406741.7
Deduct 497 from 550 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 10:
71 can be fit into 530 7 times, resulting in a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 1406741.77
If we subtract 497 from 530, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

The final outcome is 1406741.77, with a leftover of 0.033.