859099 divided by 20 
We want to figure out the number of times 859099 can be divided by 20.

Going ahead to step 1:
When dividing 8 by 20, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 20

Advancing to step 2:
If we divide 85 by 20, we get 4 and a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 80 from 85 and we're left with 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 20

Step 3:
When dividing 59 by 20, we get 2 with a remainder of 19.
Use 2 as the next digit of our solution. 
Result so far: 42.0
Deduct 40 from 59 and we're left with 19.
Bring next digit (0) of the dividend behind the 19 and repeat the process: 190 / 20

Let's proceed to step 4:
190 divided by 20 is 9 with a remainder of 10.
The next digit of our result is 9. 
Result so far: 429.0
Deduct 180 from 190 and we're left with 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 20

Moving on to step 5:
The number 20 fits into 109 5 times, leaving a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 4295.0
Subtracting 100 from 109 leaves us with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 20

Advancing to step 6:
99 divided by 20 is 4 with a remainder of 19.
Use 4 as the next digit of our solution. 
Result so far: 42954.0
Deduct 80 from 99 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
If we divide 190 by 20, we get 9 and a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 42954.9
Subtracting 180 from 190 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 42954.95
If we subtract 100 from 100, we 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.

Step 9:
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: 42954.95
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.

Moving on to step 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 42954.95
Deduct 0 from 0 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.

The quotient of the division is 42954.95, and the remainder is 0.0.