Let's divide 78406824 by 400
We want to figure out the number of times 78406824 can be divided by 400.

On to step 1:
7 divided by 400 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 400

Going ahead to step 2:
The number 400 fits into 78 0 times, leaving a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Fetch the next digit (4) from the dividend, attach it to 78 and continue: 784 / 400

On to step 3:
The number 400 fits into 784 1 times, leaving a remainder of 384.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 400 from 784 leaves us with 384.
Fetch the next digit (0) from the dividend, attach it to 384 and continue: 3840 / 400

Step 4:
When dividing 3840 by 400, we get 9 with a remainder of 240.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we subtract 3600 from 3840, we get 240.
Grab the next digit (6) from the dividend, add it to 240, then carry on: 2406 / 400

Moving on to step 5:
400 can be fit into 2406 6 times, resulting in a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 196.0
Subtract 2400 from 2406 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 400

Let's proceed to step 6:
If we divide 68 by 400, we get 0 and a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 1960.0
Subtracting 0 from 68 leaves us with 68.
Grab the next digit (2) from the dividend, add it to 68, then carry on: 682 / 400

Let's proceed to step 7:
682 divided by 400 is 1 with a remainder of 282.
Put 1 as the next digit of the answer. 
Result so far: 19601.0
Subtracting 400 from 682 leaves us with 282.
Bring next digit (4) of the dividend behind the 282 and repeat the process: 2824 / 400

Advancing to step 8:
400 goes into 2824 7 times with a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 196017.0
Subtracting 2800 from 2824 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 9:
The number 400 fits into 240 0 times, leaving a remainder of 240.
Record the quotient 0 as the next digit in the result. 
Result so far: 196017.0
If we take 0 away from 240, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 10:
400 goes into 2400 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 196017.06
Subtracting 2400 from 2400 leaves us 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.

On to step 11:
0 divided by 400 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 196017.06
Subtracting 0 from 0 leaves us 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.

On to step 12:
400 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 196017.06
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.

Our division results in 196017.06 with a remaining 0.0.