We look at the division of 77438379 by 252 
We want to divide 77438379 by 252.

Step 1:
If we divide 7 by 252, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 252

Step 2:
77 divided by 252 is 0 with a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Bring next digit (4) of the dividend behind the 77 and repeat the process: 774 / 252

Moving on to step 3:
If we divide 774 by 252, we get 3 and a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 756 from 774 to get 18.
Append the next digit (3) from the dividend to 18 and continue with: 183 / 252

Advancing to step 4:
252 goes into 183 0 times with a remainder of 183.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
Subtract 0 from 183 to get 183.
Append the next digit (8) from the dividend to 183 and continue with: 1838 / 252

Step 5:
If we divide 1838 by 252, we get 7 and a remainder of 74.
The next digit of our result is 7. 
Result so far: 307.0
Subtract 1764 from 1838 to get 74.
Include the next digit (3) from the dividend after 74, then repeat: 743 / 252

Moving on to step 6:
252 can be fit into 743 2 times, resulting in a remainder of 239.
Put 2 as the next digit of the answer. 
Result so far: 3072.0
Subtract 504 from 743 to get 239.
Grab the next digit (7) from the dividend, add it to 239, then carry on: 2397 / 252

On to step 7:
252 can be fit into 2397 9 times, resulting in a remainder of 129.
Record the quotient 9 as the next digit in the result. 
Result so far: 30729.0
If we subtract 2268 from 2397, we get 129.
Append the next digit (9) from the dividend to 129 and continue with: 1299 / 252

Step 8:
If we divide 1299 by 252, we get 5 and a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 307295.0
Deduct 1260 from 1299 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 9:
252 can be fit into 390 1 times, resulting in a remainder of 138.
The number 1 becomes the next digit in our result. 
Result so far: 307295.1
Subtracting 252 from 390 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Let's proceed to step 10:
The number 252 fits into 1380 5 times, leaving a remainder of 120.
Put 5 as the next digit of the answer. 
Result so far: 307295.15
Deduct 1260 from 1380 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 11:
252 goes into 1200 4 times with a remainder of 192.
Use 4 as the next digit of our solution. 
Result so far: 307295.154
Deduct 1008 from 1200 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 12:
252 can be fit into 1920 7 times, resulting in a remainder of 156.
The number 7 becomes the next digit in our result. 
Result so far: 307295.1547
If we subtract 1764 from 1920, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Moving on to step 13:
When dividing 1560 by 252, we get 6 with a remainder of 48.
The number 6 becomes the next digit in our result. 
Result so far: 307295.15476
The remainder is 48 after subtracting 1512 from 1560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 14:
When dividing 480 by 252, we get 1 with a remainder of 228.
Record the quotient 1 as the next digit in the result. 
Result so far: 307295.154761
The remainder is 228 after subtracting 252 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Step 15:
If we divide 2280 by 252, we get 9 and a remainder of 12.
The next digit of our result is 9. 
Result so far: 307295.1547619
Subtracting 2268 from 2280 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 16:
120 divided by 252 is 0 with a remainder of 120.
Write down 0 as next digit of the result. 
Result so far: 307295.1547619
If we subtract 0 from 120, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

After the division, we end up with 307295.1547619 and a remainder of 1.2e-07.