We divide 64334654 by 90
We want to figure out the number of times 64334654 can be divided by 90.

Advancing to step 1:
6 divided by 90 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 90

Advancing to step 2:
If we divide 64 by 90, we get 0 and a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Fetch the next digit (3) from the dividend, attach it to 64 and continue: 643 / 90

Step 3:
When dividing 643 by 90, we get 7 with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 630 away from 643, we end up with 13.
Take the next digit (3) from the dividend and append it to 13, then repeat: 133 / 90

Let's proceed to step 4:
When dividing 133 by 90, we get 1 with a remainder of 43.
Use 1 as the next digit of our solution. 
Result so far: 71.0
Deduct 90 from 133 and we're left with 43.
Bring next digit (4) of the dividend behind the 43 and repeat the process: 434 / 90

Moving on to step 5:
90 can be fit into 434 4 times, resulting in a remainder of 74.
Record the quotient 4 as the next digit in the result. 
Result so far: 714.0
If we take 360 away from 434, we end up with 74.
Append the next digit (6) from the dividend to 74 and continue with: 746 / 90

Step 6:
When dividing 746 by 90, we get 8 with a remainder of 26.
Use 8 as the next digit of our solution. 
Result so far: 7148.0
Deduct 720 from 746 and we're left with 26.
Include the next digit (5) from the dividend after 26, then repeat: 265 / 90

Let's proceed to step 7:
90 can be fit into 265 2 times, resulting in a remainder of 85.
The next digit of our result is 2. 
Result so far: 71482.0
The remainder is 85 after subtracting 180 from 265.
Take the next digit (4) from the dividend and append it to 85, then repeat: 854 / 90

Let's proceed to step 8:
90 can be fit into 854 9 times, resulting in a remainder of 44.
Use 9 as the next digit of our solution. 
Result so far: 714829.0
The remainder is 44 after subtracting 810 from 854.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 9:
440 divided by 90 is 4 with a remainder of 80.
Use 4 as the next digit of our solution. 
Result so far: 714829.4
If we subtract 360 from 440, we 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.

Let's proceed to step 10:
The number 90 fits into 800 8 times, leaving a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 714829.48
Subtract 720 from 800 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.

Advancing to step 11:
If we divide 800 by 90, we get 8 and a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 714829.488
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.

The final result is 714829.488 with a remainder of 0.008.