Let's divide 77432274 by 390
Our goal is to divide 77432274 by 390.

Moving on to step 1:
7 divided by 390 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 390

Going ahead to step 2:
77 divided by 390 is 0 with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Grab the next digit (4) from the dividend, add it to 77, then carry on: 774 / 390

On to step 3:
When dividing 774 by 390, we get 1 with a remainder of 384.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 384 after subtracting 390 from 774.
Include the next digit (3) from the dividend after 384, then repeat: 3843 / 390

Advancing to step 4:
3843 divided by 390 is 9 with a remainder of 333.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 3510 from 3843 to get 333.
Include the next digit (2) from the dividend after 333, then repeat: 3332 / 390

On to step 5:
390 goes into 3332 8 times with a remainder of 212.
Record the quotient 8 as the next digit in the result. 
Result so far: 198.0
If we take 3120 away from 3332, we end up with 212.
Grab the next digit (2) from the dividend, add it to 212, then carry on: 2122 / 390

On to step 6:
390 can be fit into 2122 5 times, resulting in a remainder of 172.
The next digit of our result is 5. 
Result so far: 1985.0
Deduct 1950 from 2122 and we're left with 172.
Take the next digit (7) from the dividend and append it to 172, then repeat: 1727 / 390

On to step 7:
390 can be fit into 1727 4 times, resulting in a remainder of 167.
Write down 4 as next digit of the result. 
Result so far: 19854.0
If we subtract 1560 from 1727, we get 167.
Append the next digit (4) from the dividend to 167 and continue with: 1674 / 390

Let's proceed to step 8:
390 can be fit into 1674 4 times, resulting in a remainder of 114.
Use 4 as the next digit of our solution. 
Result so far: 198544.0
Subtracting 1560 from 1674 leaves us with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Advancing to step 9:
If we divide 1140 by 390, we get 2 and a remainder of 360.
The number 2 becomes the next digit in our result. 
Result so far: 198544.2
If we take 780 away from 1140, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 10:
When dividing 3600 by 390, we get 9 with a remainder of 90.
The number 9 becomes the next digit in our result. 
Result so far: 198544.29
Subtracting 3510 from 3600 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.

Going ahead to step 11:
The number 390 fits into 900 2 times, leaving a remainder of 120.
Use 2 as the next digit of our solution. 
Result so far: 198544.292
If we subtract 780 from 900, 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.

Advancing to step 12:
1200 divided by 390 is 3 with a remainder of 30.
The number 3 becomes the next digit in our result. 
Result so far: 198544.2923
If we take 1170 away from 1200, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 13:
The number 390 fits into 300 0 times, leaving a remainder of 300.
The next digit of our result is 0. 
Result so far: 198544.2923
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 14:
3000 divided by 390 is 7 with a remainder of 270.
Write down 7 as next digit of the result. 
Result so far: 198544.292307
If we subtract 2730 from 3000, we get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

On to step 15:
2700 divided by 390 is 6 with a remainder of 360.
The number 6 becomes the next digit in our result. 
Result so far: 198544.2923076
Deduct 2340 from 2700 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 16:
390 goes into 3600 9 times with a remainder of 90.
The next digit of our result is 9. 
Result so far: 198544.29230769
If we take 3510 away from 3600, we end up 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.

In conclusion, the division gives 198544.29230769 with a balance of 9e-08.