Let's divide 777371 by 20
We want to figure out the number of times 777371 can be divided by 20.

On to step 1:
7 divided by 20 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 20

On to step 2:
If we divide 77 by 20, we get 3 and a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 60 from 77 and we're left with 17.
Fetch the next digit (7) from the dividend, attach it to 17 and continue: 177 / 20

Going ahead to step 3:
20 can be fit into 177 8 times, resulting in a remainder of 17.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
If we take 160 away from 177, we end up with 17.
Append the next digit (3) from the dividend to 17 and continue with: 173 / 20

Step 4:
If we divide 173 by 20, we get 8 and a remainder of 13.
Use 8 as the next digit of our solution. 
Result so far: 388.0
If we subtract 160 from 173, we get 13.
Bring next digit (7) of the dividend behind the 13 and repeat the process: 137 / 20

Let's proceed to step 5:
20 goes into 137 6 times with a remainder of 17.
Record the quotient 6 as the next digit in the result. 
Result so far: 3886.0
If we take 120 away from 137, we end up with 17.
Bring next digit (1) of the dividend behind the 17 and repeat the process: 171 / 20

Advancing to step 6:
If we divide 171 by 20, we get 8 and a remainder of 11.
Write down 8 as next digit of the result. 
Result so far: 38868.0
Subtract 160 from 171 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
The number 20 fits into 110 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 38868.5
The remainder is 10 after subtracting 100 from 110.
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:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 38868.55
If we take 100 away from 100, 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.

After the division, we end up with 38868.55 and a remainder of 0.0.