84149 ÷ 90 
We want to figure out the number of times 84149 can be divided by 90.

Going ahead to step 1:
90 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 90

Advancing to step 2:
90 can be fit into 84 0 times, resulting in a remainder of 84.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 84, we end up with 84.
Bring next digit (1) of the dividend behind the 84 and repeat the process: 841 / 90

Moving on to step 3:
90 goes into 841 9 times with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 810 from 841 and we're left with 31.
Grab the next digit (4) from the dividend, add it to 31, then carry on: 314 / 90

Moving on to step 4:
314 divided by 90 is 3 with a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 93.0
If we take 270 away from 314, we end up with 44.
Take the next digit (9) from the dividend and append it to 44, then repeat: 449 / 90

Moving on to step 5:
When dividing 449 by 90, we get 4 with a remainder of 89.
The number 4 becomes the next digit in our result. 
Result so far: 934.0
Subtracting 360 from 449 leaves us with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Advancing to step 6:
If we divide 890 by 90, we get 9 and a remainder of 80.
Use 9 as the next digit of our solution. 
Result so far: 934.9
Subtract 810 from 890 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 7:
90 can be fit into 800 8 times, resulting in a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 934.98
The remainder is 80 after subtracting 720 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 8:
800 divided by 90 is 8 with a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 934.988
If we take 720 away from 800, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 934.988 with a remaining 0.008.