We look at the division of 78155769 by 400 
Our goal is to divide 78155769 by 400.

Let's proceed to step 1:
400 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 400

Moving on to step 2:
When dividing 78 by 400, we get 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Grab the next digit (1) from the dividend, add it to 78, then carry on: 781 / 400

Step 3:
400 can be fit into 781 1 times, resulting in a remainder of 381.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 400 from 781 to get 381.
Fetch the next digit (5) from the dividend, attach it to 381 and continue: 3815 / 400

On to step 4:
If we divide 3815 by 400, we get 9 and a remainder of 215.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
The remainder is 215 after subtracting 3600 from 3815.
Bring next digit (5) of the dividend behind the 215 and repeat the process: 2155 / 400

On to step 5:
If we divide 2155 by 400, we get 5 and a remainder of 155.
Record the quotient 5 as the next digit in the result. 
Result so far: 195.0
Subtracting 2000 from 2155 leaves us with 155.
Include the next digit (7) from the dividend after 155, then repeat: 1557 / 400

Step 6:
If we divide 1557 by 400, we get 3 and a remainder of 357.
The number 3 becomes the next digit in our result. 
Result so far: 1953.0
If we subtract 1200 from 1557, we get 357.
Take the next digit (6) from the dividend and append it to 357, then repeat: 3576 / 400

Let's proceed to step 7:
3576 divided by 400 is 8 with a remainder of 376.
Use 8 as the next digit of our solution. 
Result so far: 19538.0
Subtract 3200 from 3576 to get 376.
Grab the next digit (9) from the dividend, add it to 376, then carry on: 3769 / 400

On to step 8:
3769 divided by 400 is 9 with a remainder of 169.
Put 9 as the next digit of the answer. 
Result so far: 195389.0
Deduct 3600 from 3769 and we're left with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Going ahead to step 9:
400 can be fit into 1690 4 times, resulting in a remainder of 90.
Put 4 as the next digit of the answer. 
Result so far: 195389.4
Subtracting 1600 from 1690 leaves us with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 10:
The number 400 fits into 900 2 times, leaving a remainder of 100.
Use 2 as the next digit of our solution. 
Result so far: 195389.42
The remainder is 100 after subtracting 800 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 11:
The number 400 fits into 1000 2 times, leaving a remainder of 200.
The number 2 becomes the next digit in our result. 
Result so far: 195389.422
If we subtract 800 from 1000, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The quotient of the division is 195389.422, and the remainder is 0.02.