We divide 11946542 by 400
We want to divide 11946542 by 400.

Step 1:
1 divided by 400 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 400

Step 2:
The number 400 fits into 11 0 times, leaving a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 11 and we're left with 11.
Take the next digit (9) from the dividend and append it to 11, then repeat: 119 / 400

Going ahead to step 3:
400 can be fit into 119 0 times, resulting in a remainder of 119.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 119 after subtracting 0 from 119.
Take the next digit (4) from the dividend and append it to 119, then repeat: 1194 / 400

Let's proceed to step 4:
400 can be fit into 1194 2 times, resulting in a remainder of 394.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 800 from 1194 to get 394.
Grab the next digit (6) from the dividend, add it to 394, then carry on: 3946 / 400

Advancing to step 5:
When dividing 3946 by 400, we get 9 with a remainder of 346.
Put 9 as the next digit of the answer. 
Result so far: 29.0
Subtract 3600 from 3946 to get 346.
Append the next digit (5) from the dividend to 346 and continue with: 3465 / 400

Let's proceed to step 6:
If we divide 3465 by 400, we get 8 and a remainder of 265.
The next digit of our result is 8. 
Result so far: 298.0
Subtracting 3200 from 3465 leaves us with 265.
Include the next digit (4) from the dividend after 265, then repeat: 2654 / 400

Moving on to step 7:
400 can be fit into 2654 6 times, resulting in a remainder of 254.
The number 6 becomes the next digit in our result. 
Result so far: 2986.0
The remainder is 254 after subtracting 2400 from 2654.
Fetch the next digit (2) from the dividend, attach it to 254 and continue: 2542 / 400

Moving on to step 8:
2542 divided by 400 is 6 with a remainder of 142.
The number 6 becomes the next digit in our result. 
Result so far: 29866.0
Subtract 2400 from 2542 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Let's proceed to step 9:
When dividing 1420 by 400, we get 3 with a remainder of 220.
The number 3 becomes the next digit in our result. 
Result so far: 29866.3
If we take 1200 away from 1420, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 10:
400 goes into 2200 5 times with a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 29866.35
If we take 2000 away from 2200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 11:
400 can be fit into 2000 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 29866.355
The remainder is 0 after subtracting 2000 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 29866.355 with a remainder of 0.0.