90378794 ÷ 361 
Our goal is to divide 90378794 by 361.

Step 1:
If we divide 9 by 361, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 361

Let's proceed to step 2:
361 can be fit into 90 0 times, resulting in a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Bring next digit (3) of the dividend behind the 90 and repeat the process: 903 / 361

Moving on to step 3:
361 can be fit into 903 2 times, resulting in a remainder of 181.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 722 away from 903, we end up with 181.
Include the next digit (7) from the dividend after 181, then repeat: 1817 / 361

Moving on to step 4:
When dividing 1817 by 361, we get 5 with a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Deduct 1805 from 1817 and we're left with 12.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 361

Step 5:
When dividing 128 by 361, we get 0 with a remainder of 128.
The next digit of our result is 0. 
Result so far: 250.0
Subtracting 0 from 128 leaves us with 128.
Append the next digit (7) from the dividend to 128 and continue with: 1287 / 361

Step 6:
The number 361 fits into 1287 3 times, leaving a remainder of 204.
The number 3 becomes the next digit in our result. 
Result so far: 2503.0
If we take 1083 away from 1287, we end up with 204.
Include the next digit (9) from the dividend after 204, then repeat: 2049 / 361

Step 7:
361 can be fit into 2049 5 times, resulting in a remainder of 244.
The next digit of our result is 5. 
Result so far: 25035.0
If we subtract 1805 from 2049, we get 244.
Take the next digit (4) from the dividend and append it to 244, then repeat: 2444 / 361

Step 8:
361 can be fit into 2444 6 times, resulting in a remainder of 278.
Use 6 as the next digit of our solution. 
Result so far: 250356.0
Subtracting 2166 from 2444 leaves us with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Moving on to step 9:
2780 divided by 361 is 7 with a remainder of 253.
The next digit of our result is 7. 
Result so far: 250356.7
If we subtract 2527 from 2780, we get 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Step 10:
If we divide 2530 by 361, we get 7 and a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 250356.77
Deduct 2527 from 2530 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 250356.77, and the remainder is 0.003.