78834940 ÷ 672 
Our goal is to divide 78834940 by 672.

Going ahead to step 1:
The number 672 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 672

On to step 2:
672 can be fit into 78 0 times, resulting in a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Include the next digit (8) from the dividend after 78, then repeat: 788 / 672

Advancing to step 3:
672 can be fit into 788 1 times, resulting in a remainder of 116.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 672 from 788 and we're left with 116.
Append the next digit (3) from the dividend to 116 and continue with: 1163 / 672

On to step 4:
672 can be fit into 1163 1 times, resulting in a remainder of 491.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 672 from 1163 to get 491.
Append the next digit (4) from the dividend to 491 and continue with: 4914 / 672

Let's proceed to step 5:
672 goes into 4914 7 times with a remainder of 210.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
Deduct 4704 from 4914 and we're left with 210.
Fetch the next digit (9) from the dividend, attach it to 210 and continue: 2109 / 672

Step 6:
2109 divided by 672 is 3 with a remainder of 93.
Use 3 as the next digit of our solution. 
Result so far: 1173.0
If we take 2016 away from 2109, we end up with 93.
Grab the next digit (4) from the dividend, add it to 93, then carry on: 934 / 672

Going ahead to step 7:
If we divide 934 by 672, we get 1 and a remainder of 262.
Put 1 as the next digit of the answer. 
Result so far: 11731.0
Deduct 672 from 934 and we're left with 262.
Include the next digit (0) from the dividend after 262, then repeat: 2620 / 672

Step 8:
If we divide 2620 by 672, we get 3 and a remainder of 604.
Record the quotient 3 as the next digit in the result. 
Result so far: 117313.0
If we subtract 2016 from 2620, we get 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Moving on to step 9:
The number 672 fits into 6040 8 times, leaving a remainder of 664.
The next digit of our result is 8. 
Result so far: 117313.8
Subtracting 5376 from 6040 leaves us with 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Moving on to step 10:
672 can be fit into 6640 9 times, resulting in a remainder of 592.
Write down 9 as next digit of the result. 
Result so far: 117313.89
The remainder is 592 after subtracting 6048 from 6640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Step 11:
The number 672 fits into 5920 8 times, leaving a remainder of 544.
Write down 8 as next digit of the result. 
Result so far: 117313.898
Deduct 5376 from 5920 and we're left with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Step 12:
672 goes into 5440 8 times with a remainder of 64.
Use 8 as the next digit of our solution. 
Result so far: 117313.8988
Subtract 5376 from 5440 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.

The final result is 117313.8988 with a remainder of 0.00064.