We're dividing 764191 by 75 
We want to figure out the number of times 764191 can be divided by 75.

Step 1:
75 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 75

Moving on to step 2:
75 can be fit into 76 1 times, resulting in a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 75 from 76 and we're left with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 75

Let's proceed to step 3:
14 divided by 75 is 0 with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 14, we end up with 14.
Grab the next digit (1) from the dividend, add it to 14, then carry on: 141 / 75

Going ahead to step 4:
75 goes into 141 1 times with a remainder of 66.
The next digit of our result is 1. 
Result so far: 101.0
Deduct 75 from 141 and we're left with 66.
Fetch the next digit (9) from the dividend, attach it to 66 and continue: 669 / 75

Moving on to step 5:
75 goes into 669 8 times with a remainder of 69.
Record the quotient 8 as the next digit in the result. 
Result so far: 1018.0
Subtract 600 from 669 to get 69.
Take the next digit (1) from the dividend and append it to 69, then repeat: 691 / 75

Moving on to step 6:
75 can be fit into 691 9 times, resulting in a remainder of 16.
The number 9 becomes the next digit in our result. 
Result so far: 10189.0
If we subtract 675 from 691, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
75 can be fit into 160 2 times, resulting in a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 10189.2
Subtract 150 from 160 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
75 can be fit into 100 1 times, resulting in a remainder of 25.
The next digit of our result is 1. 
Result so far: 10189.21
The remainder is 25 after subtracting 75 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 9:
75 can be fit into 250 3 times, resulting in a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 10189.213
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 10:
The number 75 fits into 250 3 times, leaving a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 10189.2133
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 10189.2133 with a remainder of 0.00025.