85370808 ÷ 20 
We want to divide 85370808 by 20.

Moving on to step 1:
When dividing 8 by 20, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 20

Going ahead to step 2:
When dividing 85 by 20, we get 4 with a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 80 from 85 to get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 20

On to step 3:
When dividing 53 by 20, we get 2 with a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Subtracting 40 from 53 leaves us with 13.
Bring next digit (7) of the dividend behind the 13 and repeat the process: 137 / 20

Advancing to step 4:
137 divided by 20 is 6 with a remainder of 17.
Put 6 as the next digit of the answer. 
Result so far: 426.0
Subtract 120 from 137 to get 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 20

On to step 5:
170 divided by 20 is 8 with a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 4268.0
Deduct 160 from 170 and we're left with 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 20

Let's proceed to step 6:
The number 20 fits into 108 5 times, leaving a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 42685.0
The remainder is 8 after subtracting 100 from 108.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 20

Moving on to step 7:
80 divided by 20 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 426854.0
Subtracting 80 from 80 leaves us with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 20

Let's proceed to step 8:
When dividing 8 by 20, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 4268540.0
If we subtract 0 from 8, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
When dividing 80 by 20, we get 4 with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 4268540.4
Subtract 80 from 80 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.

Let's proceed to step 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4268540.4
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.

Let's proceed to step 11:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4268540.4
If we subtract 0 from 0, 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.

In conclusion, the division gives 4268540.4 with a balance of 0.0.