Let's divide 370221 by 90
Let's see how many times 90 fits into 370221.

On to step 1:
3 divided by 90 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 90

Step 2:
90 can be fit into 37 0 times, resulting in a remainder of 37.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 37, we get 37.
Include the next digit (0) from the dividend after 37, then repeat: 370 / 90

Going ahead to step 3:
If we divide 370 by 90, we get 4 and a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 360 from 370 to get 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 90

Let's proceed to step 4:
90 can be fit into 102 1 times, resulting in a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
Subtract 90 from 102 to get 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 90

Moving on to step 5:
122 divided by 90 is 1 with a remainder of 32.
The next digit of our result is 1. 
Result so far: 411.0
Subtract 90 from 122 to get 32.
Append the next digit (1) from the dividend to 32 and continue with: 321 / 90

Let's proceed to step 6:
321 divided by 90 is 3 with a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 4113.0
If we subtract 270 from 321, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 7:
90 can be fit into 510 5 times, resulting in a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 4113.5
Deduct 450 from 510 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
When dividing 600 by 90, we get 6 with a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 4113.56
Deduct 540 from 600 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
90 can be fit into 600 6 times, resulting in a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 4113.566
If we subtract 540 from 600, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Our division results in 4113.566 with a remaining 0.006.