We're dividing 40288651 by 891 
We want to figure out the number of times 40288651 can be divided by 891.

On to step 1:
If we divide 4 by 891, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 891

Advancing to step 2:
891 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Append the next digit (2) from the dividend to 40 and continue with: 402 / 891

Step 3:
402 divided by 891 is 0 with a remainder of 402.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 402 and we're left with 402.
Include the next digit (8) from the dividend after 402, then repeat: 4028 / 891

Advancing to step 4:
When dividing 4028 by 891, we get 4 with a remainder of 464.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 3564 from 4028, we get 464.
Bring next digit (8) of the dividend behind the 464 and repeat the process: 4648 / 891

On to step 5:
891 can be fit into 4648 5 times, resulting in a remainder of 193.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
Subtract 4455 from 4648 to get 193.
Append the next digit (6) from the dividend to 193 and continue with: 1936 / 891

Step 6:
If we divide 1936 by 891, we get 2 and a remainder of 154.
Use 2 as the next digit of our solution. 
Result so far: 452.0
Subtract 1782 from 1936 to get 154.
Fetch the next digit (5) from the dividend, attach it to 154 and continue: 1545 / 891

Step 7:
If we divide 1545 by 891, we get 1 and a remainder of 654.
Record the quotient 1 as the next digit in the result. 
Result so far: 4521.0
Deduct 891 from 1545 and we're left with 654.
Take the next digit (1) from the dividend and append it to 654, then repeat: 6541 / 891

Step 8:
6541 divided by 891 is 7 with a remainder of 304.
Record the quotient 7 as the next digit in the result. 
Result so far: 45217.0
If we take 6237 away from 6541, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 9:
When dividing 3040 by 891, we get 3 with a remainder of 367.
Write down 3 as next digit of the result. 
Result so far: 45217.3
Subtracting 2673 from 3040 leaves us with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Moving on to step 10:
3670 divided by 891 is 4 with a remainder of 106.
Write down 4 as next digit of the result. 
Result so far: 45217.34
If we subtract 3564 from 3670, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 11:
If we divide 1060 by 891, we get 1 and a remainder of 169.
Write down 1 as next digit of the result. 
Result so far: 45217.341
Deduct 891 from 1060 and we're left with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Going ahead to step 12:
If we divide 1690 by 891, we get 1 and a remainder of 799.
The number 1 becomes the next digit in our result. 
Result so far: 45217.3411
Deduct 891 from 1690 and we're left with 799.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7990, and continue the process.

After the division, we end up with 45217.3411 and a remainder of 0.00799.