75863891 divided by 514 
We want to figure out the number of times 75863891 can be divided by 514.

On to step 1:
If we divide 7 by 514, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 514

Moving on to step 2:
514 can be fit into 75 0 times, resulting in a remainder of 75.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Fetch the next digit (8) from the dividend, attach it to 75 and continue: 758 / 514

Going ahead to step 3:
The number 514 fits into 758 1 times, leaving a remainder of 244.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 514 from 758 and we're left with 244.
Grab the next digit (6) from the dividend, add it to 244, then carry on: 2446 / 514

On to step 4:
514 can be fit into 2446 4 times, resulting in a remainder of 390.
The next digit of our result is 4. 
Result so far: 14.0
The remainder is 390 after subtracting 2056 from 2446.
Include the next digit (3) from the dividend after 390, then repeat: 3903 / 514

Let's proceed to step 5:
If we divide 3903 by 514, we get 7 and a remainder of 305.
The next digit of our result is 7. 
Result so far: 147.0
If we subtract 3598 from 3903, we get 305.
Fetch the next digit (8) from the dividend, attach it to 305 and continue: 3058 / 514

On to step 6:
When dividing 3058 by 514, we get 5 with a remainder of 488.
The number 5 becomes the next digit in our result. 
Result so far: 1475.0
Deduct 2570 from 3058 and we're left with 488.
Grab the next digit (9) from the dividend, add it to 488, then carry on: 4889 / 514

Step 7:
When dividing 4889 by 514, we get 9 with a remainder of 263.
Use 9 as the next digit of our solution. 
Result so far: 14759.0
If we subtract 4626 from 4889, we get 263.
Grab the next digit (1) from the dividend, add it to 263, then carry on: 2631 / 514

On to step 8:
When dividing 2631 by 514, we get 5 with a remainder of 61.
Put 5 as the next digit of the answer. 
Result so far: 147595.0
Deduct 2570 from 2631 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 9:
514 goes into 610 1 times with a remainder of 96.
Use 1 as the next digit of our solution. 
Result so far: 147595.1
Subtract 514 from 610 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 10:
514 can be fit into 960 1 times, resulting in a remainder of 446.
Record the quotient 1 as the next digit in the result. 
Result so far: 147595.11
If we take 514 away from 960, we end up with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

The final outcome is 147595.11, with a leftover of 0.446.