We divide 91603025 by 28
We want to figure out the number of times 91603025 can be divided by 28.

Let's proceed to step 1:
28 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 28

Moving on to step 2:
If we divide 91 by 28, we get 3 and a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 84 away from 91, we end up with 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 28

Going ahead to step 3:
28 goes into 76 2 times with a remainder of 20.
The next digit of our result is 2. 
Result so far: 32.0
Subtract 56 from 76 to get 20.
Grab the next digit (0) from the dividend, add it to 20, then carry on: 200 / 28

Going ahead to step 4:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 327.0
Subtract 196 from 200 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 28

On to step 5:
When dividing 43 by 28, we get 1 with a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 3271.0
Deduct 28 from 43 and we're left with 15.
Grab the next digit (0) from the dividend, add it to 15, then carry on: 150 / 28

On to step 6:
When dividing 150 by 28, we get 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 32715.0
The remainder is 10 after subtracting 140 from 150.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 28

Moving on to step 7:
When dividing 102 by 28, we get 3 with a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 327153.0
Subtracting 84 from 102 leaves us with 18.
Include the next digit (5) from the dividend after 18, then repeat: 185 / 28

On to step 8:
28 can be fit into 185 6 times, resulting in a remainder of 17.
Use 6 as the next digit of our solution. 
Result so far: 3271536.0
If we take 168 away from 185, we end up 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.

Step 9:
The number 28 fits into 170 6 times, leaving a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 3271536.6
Subtracting 168 from 170 leaves us 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.

Moving on to step 10:
28 goes into 20 0 times with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 3271536.6
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 11:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 3271536.607
Deduct 196 from 200 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 12:
28 goes into 40 1 times with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 3271536.6071
If we subtract 28 from 40, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 13:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 3271536.60714
Deduct 112 from 120 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 14:
28 can be fit into 80 2 times, resulting in a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 3271536.607142
The remainder is 24 after subtracting 56 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 15:
240 divided by 28 is 8 with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 3271536.6071428
If we subtract 224 from 240, 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.

On to step 16:
When dividing 160 by 28, we get 5 with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 3271536.60714285
If we subtract 140 from 160, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 3271536.60714285 with a balance of 2e-08.