76891863 ÷ 74 
We want to figure out the number of times 76891863 can be divided by 74.

On to step 1:
When dividing 7 by 74, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 74

Advancing to step 2:
76 divided by 74 is 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 2 after subtracting 74 from 76.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 74

On to step 3:
The number 74 fits into 28 0 times, leaving a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 28 to get 28.
Append the next digit (9) from the dividend to 28 and continue with: 289 / 74

Let's proceed to step 4:
The number 74 fits into 289 3 times, leaving a remainder of 67.
The next digit of our result is 3. 
Result so far: 103.0
Subtract 222 from 289 to get 67.
Fetch the next digit (1) from the dividend, attach it to 67 and continue: 671 / 74

Going ahead to step 5:
671 divided by 74 is 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 1039.0
The remainder is 5 after subtracting 666 from 671.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 74

Going ahead to step 6:
When dividing 58 by 74, we get 0 with a remainder of 58.
The number 0 becomes the next digit in our result. 
Result so far: 10390.0
If we take 0 away from 58, we end up with 58.
Take the next digit (6) from the dividend and append it to 58, then repeat: 586 / 74

On to step 7:
74 goes into 586 7 times with a remainder of 68.
The next digit of our result is 7. 
Result so far: 103907.0
If we subtract 518 from 586, we get 68.
Include the next digit (3) from the dividend after 68, then repeat: 683 / 74

Advancing to step 8:
When dividing 683 by 74, we get 9 with a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 1039079.0
Subtracting 666 from 683 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 9:
74 can be fit into 170 2 times, resulting in a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 1039079.2
If we take 148 away from 170, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 10:
The number 74 fits into 220 2 times, leaving a remainder of 72.
Write down 2 as next digit of the result. 
Result so far: 1039079.22
Subtracting 148 from 220 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 1039079.22 with a remainder of 0.072.