Let's divide 210040 by 78
Our goal is to divide 210040 by 78.

Step 1:
78 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 78

Step 2:
If we divide 21 by 78, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 78

Going ahead to step 3:
78 goes into 210 2 times with a remainder of 54.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 156 away from 210, we end up with 54.
Include the next digit (0) from the dividend after 54, then repeat: 540 / 78

Moving on to step 4:
If we divide 540 by 78, we get 6 and a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 26.0
If we take 468 away from 540, we end up with 72.
Fetch the next digit (4) from the dividend, attach it to 72 and continue: 724 / 78

Step 5:
78 goes into 724 9 times with a remainder of 22.
Record the quotient 9 as the next digit in the result. 
Result so far: 269.0
If we take 702 away from 724, we end up with 22.
Include the next digit (0) from the dividend after 22, then repeat: 220 / 78

Moving on to step 6:
220 divided by 78 is 2 with a remainder of 64.
The next digit of our result is 2. 
Result so far: 2692.0
Subtracting 156 from 220 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 7:
78 can be fit into 640 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 2692.8
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.

Advancing to step 8:
The number 78 fits into 160 2 times, leaving a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2692.82
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
78 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 2692.82
Subtracting 0 from 40 leaves us 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.

Let's proceed to step 10:
When dividing 400 by 78, we get 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 2692.8205
Deduct 390 from 400 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.

Let's proceed to step 11:
When dividing 100 by 78, we get 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 2692.82051
Deduct 78 from 100 and we're left 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.

On to step 12:
The number 78 fits into 220 2 times, leaving a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 2692.820512
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.

Going ahead to step 13:
When dividing 640 by 78, we get 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 2692.8205128
Subtracting 624 from 640 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 14:
When dividing 160 by 78, we get 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2692.82051282
Subtracting 156 from 160 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 2692.82051282 and a remainder of 4e-09.