26376853 ÷ 400 
We want to divide 26376853 by 400.

Step 1:
The number 400 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 400

On to step 2:
400 goes into 26 0 times with a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 26 and we're left with 26.
Grab the next digit (3) from the dividend, add it to 26, then carry on: 263 / 400

Moving on to step 3:
The number 400 fits into 263 0 times, leaving a remainder of 263.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 263, we end up with 263.
Include the next digit (7) from the dividend after 263, then repeat: 2637 / 400

On to step 4:
If we divide 2637 by 400, we get 6 and a remainder of 237.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 2400 from 2637 to get 237.
Grab the next digit (6) from the dividend, add it to 237, then carry on: 2376 / 400

Step 5:
2376 divided by 400 is 5 with a remainder of 376.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
Subtract 2000 from 2376 to get 376.
Grab the next digit (8) from the dividend, add it to 376, then carry on: 3768 / 400

Let's proceed to step 6:
The number 400 fits into 3768 9 times, leaving a remainder of 168.
The next digit of our result is 9. 
Result so far: 659.0
Deduct 3600 from 3768 and we're left with 168.
Bring next digit (5) of the dividend behind the 168 and repeat the process: 1685 / 400

Step 7:
1685 divided by 400 is 4 with a remainder of 85.
Put 4 as the next digit of the answer. 
Result so far: 6594.0
The remainder is 85 after subtracting 1600 from 1685.
Include the next digit (3) from the dividend after 85, then repeat: 853 / 400

Advancing to step 8:
400 can be fit into 853 2 times, resulting in a remainder of 53.
Record the quotient 2 as the next digit in the result. 
Result so far: 65942.0
Deduct 800 from 853 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 9:
400 can be fit into 530 1 times, resulting in a remainder of 130.
The number 1 becomes the next digit in our result. 
Result so far: 65942.1
The remainder is 130 after subtracting 400 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Moving on to step 10:
1300 divided by 400 is 3 with a remainder of 100.
Write down 3 as next digit of the result. 
Result so far: 65942.13
Subtract 1200 from 1300 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 11:
If we divide 1000 by 400, we get 2 and a remainder of 200.
The number 2 becomes the next digit in our result. 
Result so far: 65942.132
The remainder is 200 after subtracting 800 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 12:
400 goes into 2000 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 65942.1325
If we take 2000 away from 2000, 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.

Going ahead to step 13:
When dividing 0 by 400, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 65942.1325
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.

Moving on to step 14:
The number 400 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 65942.1325
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 final outcome is 65942.1325, with a leftover of 0.0.