30891222 ÷ 800 
We want to figure out the number of times 30891222 can be divided by 800.

Advancing to step 1:
If we divide 3 by 800, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 800

Going ahead to step 2:
The number 800 fits into 30 0 times, leaving a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Bring next digit (8) of the dividend behind the 30 and repeat the process: 308 / 800

Going ahead to step 3:
When dividing 308 by 800, we get 0 with a remainder of 308.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 308, we get 308.
Include the next digit (9) from the dividend after 308, then repeat: 3089 / 800

Let's proceed to step 4:
800 goes into 3089 3 times with a remainder of 689.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 2400 from 3089, we get 689.
Fetch the next digit (1) from the dividend, attach it to 689 and continue: 6891 / 800

Advancing to step 5:
When dividing 6891 by 800, we get 8 with a remainder of 491.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
Subtracting 6400 from 6891 leaves us with 491.
Append the next digit (2) from the dividend to 491 and continue with: 4912 / 800

Moving on to step 6:
When dividing 4912 by 800, we get 6 with a remainder of 112.
The next digit of our result is 6. 
Result so far: 386.0
Deduct 4800 from 4912 and we're left with 112.
Append the next digit (2) from the dividend to 112 and continue with: 1122 / 800

Moving on to step 7:
800 goes into 1122 1 times with a remainder of 322.
Use 1 as the next digit of our solution. 
Result so far: 3861.0
Deduct 800 from 1122 and we're left with 322.
Take the next digit (2) from the dividend and append it to 322, then repeat: 3222 / 800

On to step 8:
The number 800 fits into 3222 4 times, leaving a remainder of 22.
Put 4 as the next digit of the answer. 
Result so far: 38614.0
If we take 3200 away from 3222, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 9:
800 can be fit into 220 0 times, resulting in a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 38614.0
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 10:
If we divide 2200 by 800, we get 2 and a remainder of 600.
The number 2 becomes the next digit in our result. 
Result so far: 38614.02
Subtracting 1600 from 2200 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 11:
800 can be fit into 6000 7 times, resulting in a remainder of 400.
Put 7 as the next digit of the answer. 
Result so far: 38614.027
The remainder is 400 after subtracting 5600 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 12:
800 can be fit into 4000 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 38614.0275
If we take 4000 away from 4000, we end up 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.

Moving on to step 13:
When dividing 0 by 800, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 38614.0275
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.

Moving on to step 14:
0 divided by 800 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 38614.0275
Subtract 0 from 0 to get 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 outcome is 38614.0275, with a leftover of 0.0.