Let's divide 90210894 by 20
Let's see how many times 20 fits into 90210894.

Let's proceed to step 1:
20 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 20

On to step 2:
20 goes into 90 4 times with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 80 from 90 to get 10.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 20

Step 3:
If we divide 102 by 20, we get 5 and a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 45.0
If we subtract 100 from 102, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 20

Step 4:
20 can be fit into 21 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 451.0
If we subtract 20 from 21, we get 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 20

On to step 5:
If we divide 10 by 20, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 4510.0
If we subtract 0 from 10, we get 10.
Bring next digit (8) of the dividend behind the 10 and repeat the process: 108 / 20

On to step 6:
When dividing 108 by 20, we get 5 with a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 45105.0
If we subtract 100 from 108, we get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 20

Moving on to step 7:
20 can be fit into 89 4 times, resulting in a remainder of 9.
Write down 4 as next digit of the result. 
Result so far: 451054.0
Subtracting 80 from 89 leaves us with 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 20

Let's proceed to step 8:
94 divided by 20 is 4 with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 4510544.0
If we subtract 80 from 94, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
When dividing 140 by 20, we get 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 4510544.7
Subtract 140 from 140 to 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.

On to step 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4510544.7
The remainder is 0 after subtracting 0 from 0.
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 11:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4510544.7
Subtract 0 from 0 to 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 quotient of the division is 4510544.7, and the remainder is 0.0.