We look at the division of 473191 by 90 
We want to figure out the number of times 473191 can be divided by 90.

Step 1:
When dividing 4 by 90, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 90

Going ahead to step 2:
When dividing 47 by 90, we get 0 with a remainder of 47.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 47, we end up with 47.
Fetch the next digit (3) from the dividend, attach it to 47 and continue: 473 / 90

Advancing to step 3:
90 goes into 473 5 times with a remainder of 23.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 450 from 473 leaves us with 23.
Fetch the next digit (1) from the dividend, attach it to 23 and continue: 231 / 90

Let's proceed to step 4:
90 can be fit into 231 2 times, resulting in a remainder of 51.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
The remainder is 51 after subtracting 180 from 231.
Fetch the next digit (9) from the dividend, attach it to 51 and continue: 519 / 90

On to step 5:
90 can be fit into 519 5 times, resulting in a remainder of 69.
Write down 5 as next digit of the result. 
Result so far: 525.0
If we subtract 450 from 519, we get 69.
Grab the next digit (1) from the dividend, add it to 69, then carry on: 691 / 90

Going ahead to step 6:
691 divided by 90 is 7 with a remainder of 61.
Write down 7 as next digit of the result. 
Result so far: 5257.0
The remainder is 61 after subtracting 630 from 691.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 7:
The number 90 fits into 610 6 times, leaving a remainder of 70.
Put 6 as the next digit of the answer. 
Result so far: 5257.6
If we subtract 540 from 610, 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:
When dividing 700 by 90, we get 7 with a remainder of 70.
Put 7 as the next digit of the answer. 
Result so far: 5257.67
If we subtract 630 from 700, 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 9:
90 goes into 700 7 times with a remainder of 70.
Use 7 as the next digit of our solution. 
Result so far: 5257.677
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.

The final outcome is 5257.677, with a leftover of 0.007.