Let's divide 939210 by 12
We want to figure out the number of times 939210 can be divided by 12.

Going ahead to step 1:
The number 12 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 12

Step 2:
12 can be fit into 93 7 times, resulting in a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 84 from 93 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 12

On to step 3:
99 divided by 12 is 8 with a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 78.0
Deduct 96 from 99 and we're left with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 12

Step 4:
If we divide 32 by 12, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 782.0
Deduct 24 from 32 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 12

Advancing to step 5:
12 goes into 81 6 times with a remainder of 9.
Use 6 as the next digit of our solution. 
Result so far: 7826.0
Deduct 72 from 81 and we're left with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 12

Going ahead to step 6:
90 divided by 12 is 7 with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 78267.0
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
60 divided by 12 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 78267.5
Deduct 60 from 60 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.

Going ahead to step 8:
12 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 78267.5
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.

Advancing to step 9:
0 divided by 12 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 78267.5
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.

The quotient of the division is 78267.5, and the remainder is 0.0.