We look at the division of 87750191 by 4 
We want to figure out the number of times 87750191 can be divided by 4.

Step 1:
4 goes into 8 2 times with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 8 from 8 to get 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 4

Going ahead to step 2:
4 can be fit into 7 1 times, resulting in a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Subtracting 4 from 7 leaves us with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 4

Going ahead to step 3:
4 goes into 37 9 times with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 219.0
Subtract 36 from 37 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 4

On to step 4:
If we divide 15 by 4, we get 3 and a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 2193.0
Deduct 12 from 15 and we're left with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 4

Going ahead to step 5:
30 divided by 4 is 7 with a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 21937.0
The remainder is 2 after subtracting 28 from 30.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 4

Going ahead to step 6:
4 can be fit into 21 5 times, resulting in a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 219375.0
Subtract 20 from 21 to get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 4

Let's proceed to step 7:
4 can be fit into 19 4 times, resulting in a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 2193754.0
Deduct 16 from 19 and we're left with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 4

Let's proceed to step 8:
4 goes into 31 7 times with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 21937547.0
Subtract 28 from 31 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 9:
If we divide 30 by 4, we get 7 and a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 21937547.7
If we take 28 away from 30, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
4 goes into 20 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 21937547.75
The remainder is 0 after subtracting 20 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
When dividing 0 by 4, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 21937547.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
0 divided by 4 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 21937547.75
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 21937547.75 with a remainder of 0.0.