We're dividing 35986447 by 90 
Our goal is to divide 35986447 by 90.

Let's proceed to step 1:
When dividing 3 by 90, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 90

Let's proceed to step 2:
35 divided by 90 is 0 with a remainder of 35.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 35 leaves us with 35.
Grab the next digit (9) from the dividend, add it to 35, then carry on: 359 / 90

Step 3:
The number 90 fits into 359 3 times, leaving a remainder of 89.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 270 from 359 and we're left with 89.
Append the next digit (8) from the dividend to 89 and continue with: 898 / 90

Going ahead to step 4:
The number 90 fits into 898 9 times, leaving a remainder of 88.
The next digit of our result is 9. 
Result so far: 39.0
If we take 810 away from 898, we end up with 88.
Include the next digit (6) from the dividend after 88, then repeat: 886 / 90

Going ahead to step 5:
When dividing 886 by 90, we get 9 with a remainder of 76.
Record the quotient 9 as the next digit in the result. 
Result so far: 399.0
If we subtract 810 from 886, we get 76.
Fetch the next digit (4) from the dividend, attach it to 76 and continue: 764 / 90

Step 6:
When dividing 764 by 90, we get 8 with a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 3998.0
If we take 720 away from 764, we end up with 44.
Fetch the next digit (4) from the dividend, attach it to 44 and continue: 444 / 90

Moving on to step 7:
The number 90 fits into 444 4 times, leaving a remainder of 84.
The number 4 becomes the next digit in our result. 
Result so far: 39984.0
Deduct 360 from 444 and we're left with 84.
Take the next digit (7) from the dividend and append it to 84, then repeat: 847 / 90

On to step 8:
The number 90 fits into 847 9 times, leaving a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 399849.0
Subtract 810 from 847 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 9:
When dividing 370 by 90, we get 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 399849.4
Subtracting 360 from 370 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
The number 90 fits into 100 1 times, leaving a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 399849.41
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
90 goes into 100 1 times with a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 399849.411
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 399849.411 with a remainder of 0.001.