445219 divided by 90 
Let's see how many times 90 fits into 445219.

Step 1:
90 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 90

Let's proceed to step 2:
The number 90 fits into 44 0 times, leaving a remainder of 44.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 44 to get 44.
Take the next digit (5) from the dividend and append it to 44, then repeat: 445 / 90

Step 3:
90 goes into 445 4 times with a remainder of 85.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 360 from 445 to get 85.
Grab the next digit (2) from the dividend, add it to 85, then carry on: 852 / 90

On to step 4:
The number 90 fits into 852 9 times, leaving a remainder of 42.
The next digit of our result is 9. 
Result so far: 49.0
Subtracting 810 from 852 leaves us with 42.
Include the next digit (1) from the dividend after 42, then repeat: 421 / 90

Moving on to step 5:
421 divided by 90 is 4 with a remainder of 61.
The number 4 becomes the next digit in our result. 
Result so far: 494.0
The remainder is 61 after subtracting 360 from 421.
Grab the next digit (9) from the dividend, add it to 61, then carry on: 619 / 90

On to step 6:
If we divide 619 by 90, we get 6 and a remainder of 79.
Record the quotient 6 as the next digit in the result. 
Result so far: 4946.0
Subtracting 540 from 619 leaves us with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Step 7:
The number 90 fits into 790 8 times, leaving a remainder of 70.
The number 8 becomes the next digit in our result. 
Result so far: 4946.8
If we subtract 720 from 790, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 8:
90 can be fit into 700 7 times, resulting in a remainder of 70.
Put 7 as the next digit of the answer. 
Result so far: 4946.87
The remainder is 70 after subtracting 630 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 9:
700 divided by 90 is 7 with a remainder of 70.
Record the quotient 7 as the next digit in the result. 
Result so far: 4946.877
Subtracting 630 from 700 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 4946.877, with a leftover of 0.007.