30867998 ÷ 90 
We want to figure out the number of times 30867998 can be divided by 90.

Moving on to step 1:
3 divided by 90 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 90

On to step 2:
30 divided by 90 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Include the next digit (8) from the dividend after 30, then repeat: 308 / 90

Step 3:
308 divided by 90 is 3 with a remainder of 38.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 270 from 308 to get 38.
Take the next digit (6) from the dividend and append it to 38, then repeat: 386 / 90

Going ahead to step 4:
90 can be fit into 386 4 times, resulting in a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 34.0
If we subtract 360 from 386, we get 26.
Append the next digit (7) from the dividend to 26 and continue with: 267 / 90

Advancing to step 5:
267 divided by 90 is 2 with a remainder of 87.
The next digit of our result is 2. 
Result so far: 342.0
Subtract 180 from 267 to get 87.
Append the next digit (9) from the dividend to 87 and continue with: 879 / 90

Advancing to step 6:
90 can be fit into 879 9 times, resulting in a remainder of 69.
The number 9 becomes the next digit in our result. 
Result so far: 3429.0
If we subtract 810 from 879, we get 69.
Fetch the next digit (9) from the dividend, attach it to 69 and continue: 699 / 90

Going ahead to step 7:
If we divide 699 by 90, we get 7 and a remainder of 69.
Record the quotient 7 as the next digit in the result. 
Result so far: 34297.0
Deduct 630 from 699 and we're left with 69.
Fetch the next digit (8) from the dividend, attach it to 69 and continue: 698 / 90

Step 8:
698 divided by 90 is 7 with a remainder of 68.
The next digit of our result is 7. 
Result so far: 342977.0
If we take 630 away from 698, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
90 goes into 680 7 times with a remainder of 50.
Write down 7 as next digit of the result. 
Result so far: 342977.7
Subtract 630 from 680 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 10:
90 can be fit into 500 5 times, resulting in a remainder of 50.
The next digit of our result is 5. 
Result so far: 342977.75
Deduct 450 from 500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 11:
When dividing 500 by 90, we get 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 342977.755
Deduct 450 from 500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 342977.755 with a balance of 0.005.