We're dividing 155143 by 78 
We want to figure out the number of times 155143 can be divided by 78.

Advancing to step 1:
The number 78 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 78

Going ahead to step 2:
If we divide 15 by 78, we get 0 and a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 78

Advancing to step 3:
78 can be fit into 155 1 times, resulting in a remainder of 77.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 78 from 155 leaves us with 77.
Take the next digit (1) from the dividend and append it to 77, then repeat: 771 / 78

On to step 4:
771 divided by 78 is 9 with a remainder of 69.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Subtract 702 from 771 to get 69.
Include the next digit (4) from the dividend after 69, then repeat: 694 / 78

Step 5:
78 goes into 694 8 times with a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 198.0
Subtracting 624 from 694 leaves us with 70.
Grab the next digit (3) from the dividend, add it to 70, then carry on: 703 / 78

On to step 6:
78 can be fit into 703 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 1989.0
Subtract 702 from 703 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
If we divide 10 by 78, we get 0 and a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 1989.0
Deduct 0 from 10 and we're left 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.

Step 8:
78 can be fit into 100 1 times, resulting in a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 1989.01
The remainder is 22 after subtracting 78 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 9:
78 can be fit into 220 2 times, resulting in a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 1989.012
Subtract 156 from 220 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 10:
When dividing 640 by 78, we get 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 1989.0128
Subtract 624 from 640 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 11:
78 can be fit into 160 2 times, resulting in a remainder of 4.
The next digit of our result is 2. 
Result so far: 1989.01282
If we subtract 156 from 160, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 12:
If we divide 40 by 78, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 1989.01282
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 13:
If we divide 400 by 78, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 1989.0128205
If we subtract 390 from 400, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 14:
100 divided by 78 is 1 with a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 1989.01282051
If we take 78 away from 100, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

After the division, we end up with 1989.01282051 and a remainder of 2.2e-08.