Let's divide 155378 by 20
We want to figure out the number of times 155378 can be divided by 20.

On to step 1:
1 divided by 20 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 20

Going ahead to step 2:
20 can be fit into 15 0 times, resulting in a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Bring next digit (5) of the dividend behind the 15 and repeat the process: 155 / 20

Going ahead to step 3:
The number 20 fits into 155 7 times, leaving a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 140 away from 155, we end up with 15.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 20

Going ahead to step 4:
When dividing 153 by 20, we get 7 with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
If we subtract 140 from 153, we get 13.
Append the next digit (7) from the dividend to 13 and continue with: 137 / 20

On to step 5:
20 can be fit into 137 6 times, resulting in a remainder of 17.
Write down 6 as next digit of the result. 
Result so far: 776.0
If we subtract 120 from 137, we get 17.
Bring next digit (8) of the dividend behind the 17 and repeat the process: 178 / 20

Advancing to step 6:
20 can be fit into 178 8 times, resulting in a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 7768.0
If we subtract 160 from 178, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 7:
20 goes into 180 9 times with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 7768.9
Deduct 180 from 180 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:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 7768.9
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 7768.9
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.

After the division, we end up with 7768.9 and a remainder of 0.0.