We look at the division of 990593 by 5 
We want to figure out the number of times 990593 can be divided by 5.

Step 1:
5 goes into 9 1 times with a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 4 after subtracting 5 from 9.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 5

Step 2:
The number 5 fits into 49 9 times, leaving a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we subtract 45 from 49, we get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 5

Let's proceed to step 3:
If we divide 40 by 5, we get 8 and a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 198.0
Subtracting 40 from 40 leaves us with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 5

Moving on to step 4:
When dividing 5 by 5, we get 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1981.0
Deduct 5 from 5 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 5

Let's proceed to step 5:
5 can be fit into 9 1 times, resulting in a remainder of 4.
The next digit of our result is 1. 
Result so far: 19811.0
The remainder is 4 after subtracting 5 from 9.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 5

Moving on to step 6:
43 divided by 5 is 8 with a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 198118.0
Subtract 40 from 43 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
5 can be fit into 30 6 times, resulting in a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 198118.6
Deduct 30 from 30 and we're left with 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 8:
When dividing 0 by 5, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 198118.6
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
5 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 198118.6
If we take 0 away from 0, we end up with 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 final outcome is 198118.6, with a leftover of 0.0.