We're dividing 89404891 by 10 
Our goal is to divide 89404891 by 10.

Going ahead to step 1:
10 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 10

Moving on to step 2:
If we divide 89 by 10, we get 8 and a remainder of 9.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 80 from 89, we get 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 10

Advancing to step 3:
10 can be fit into 94 9 times, resulting in a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 89.0
If we take 90 away from 94, we end up with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 10

Let's proceed to step 4:
10 can be fit into 40 4 times, resulting in a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 894.0
If we take 40 away from 40, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 10

Going ahead to step 5:
If we divide 4 by 10, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 8940.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 10

Moving on to step 6:
The number 10 fits into 48 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 89404.0
Subtract 40 from 48 to get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 10

Let's proceed to step 7:
89 divided by 10 is 8 with a remainder of 9.
Put 8 as the next digit of the answer. 
Result so far: 894048.0
Subtract 80 from 89 to get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 10

Let's proceed to step 8:
91 divided by 10 is 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 8940489.0
Subtract 90 from 91 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
If we divide 10 by 10, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 8940489.1
The remainder is 0 after subtracting 10 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
0 divided by 10 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8940489.1
If we take 0 away from 0, 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.

Step 11:
10 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8940489.1
If we subtract 0 from 0, we 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 result is 8940489.1 with a remainder of 0.0.