19421294 divided by 90 
Our goal is to divide 19421294 by 90.

Moving on to step 1:
90 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 90

Moving on to step 2:
The number 90 fits into 19 0 times, leaving a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 19 to get 19.
Take the next digit (4) from the dividend and append it to 19, then repeat: 194 / 90

Moving on to step 3:
90 goes into 194 2 times with a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 180 away from 194, we end up with 14.
Append the next digit (2) from the dividend to 14 and continue with: 142 / 90

Moving on to step 4:
90 goes into 142 1 times with a remainder of 52.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtracting 90 from 142 leaves us with 52.
Include the next digit (1) from the dividend after 52, then repeat: 521 / 90

Step 5:
If we divide 521 by 90, we get 5 and a remainder of 71.
The number 5 becomes the next digit in our result. 
Result so far: 215.0
Subtracting 450 from 521 leaves us with 71.
Take the next digit (2) from the dividend and append it to 71, then repeat: 712 / 90

Let's proceed to step 6:
If we divide 712 by 90, we get 7 and a remainder of 82.
Record the quotient 7 as the next digit in the result. 
Result so far: 2157.0
Subtracting 630 from 712 leaves us with 82.
Fetch the next digit (9) from the dividend, attach it to 82 and continue: 829 / 90

Step 7:
90 can be fit into 829 9 times, resulting in a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 21579.0
Deduct 810 from 829 and we're left with 19.
Append the next digit (4) from the dividend to 19 and continue with: 194 / 90

Step 8:
The number 90 fits into 194 2 times, leaving a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 215792.0
If we subtract 180 from 194, 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.

Advancing to step 9:
90 can be fit into 140 1 times, resulting in a remainder of 50.
The number 1 becomes the next digit in our result. 
Result so far: 215792.1
If we take 90 away from 140, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 10:
When dividing 500 by 90, we get 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 215792.15
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
The number 90 fits into 500 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 215792.155
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 215792.155 with a remainder of 0.005.