21366328 divided by 400 
We're looking to find how many times 400 goes into 21366328.

Advancing to step 1:
2 divided by 400 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 400

On to step 2:
21 divided by 400 is 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 400

Step 3:
400 goes into 213 0 times with a remainder of 213.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 213 to get 213.
Grab the next digit (6) from the dividend, add it to 213, then carry on: 2136 / 400

Step 4:
400 goes into 2136 5 times with a remainder of 136.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 2000 from 2136 leaves us with 136.
Append the next digit (6) from the dividend to 136 and continue with: 1366 / 400

Moving on to step 5:
1366 divided by 400 is 3 with a remainder of 166.
The number 3 becomes the next digit in our result. 
Result so far: 53.0
If we subtract 1200 from 1366, we get 166.
Fetch the next digit (3) from the dividend, attach it to 166 and continue: 1663 / 400

On to step 6:
400 can be fit into 1663 4 times, resulting in a remainder of 63.
Use 4 as the next digit of our solution. 
Result so far: 534.0
Subtract 1600 from 1663 to get 63.
Take the next digit (2) from the dividend and append it to 63, then repeat: 632 / 400

Advancing to step 7:
632 divided by 400 is 1 with a remainder of 232.
Record the quotient 1 as the next digit in the result. 
Result so far: 5341.0
If we subtract 400 from 632, we get 232.
Fetch the next digit (8) from the dividend, attach it to 232 and continue: 2328 / 400

Advancing to step 8:
If we divide 2328 by 400, we get 5 and a remainder of 328.
The next digit of our result is 5. 
Result so far: 53415.0
If we subtract 2000 from 2328, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Moving on to step 9:
When dividing 3280 by 400, we get 8 with a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 53415.8
Subtract 3200 from 3280 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 10:
800 divided by 400 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 53415.82
Deduct 800 from 800 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.

Let's proceed to step 11:
If we divide 0 by 400, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 53415.82
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.

Step 12:
400 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 53415.82
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 53415.82 and a remainder of 0.0.