63960690 divided by 978 
Our goal is to divide 63960690 by 978.

Advancing to step 1:
When dividing 6 by 978, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 978

Advancing to step 2:
978 goes into 63 0 times with a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Include the next digit (9) from the dividend after 63, then repeat: 639 / 978

On to step 3:
978 can be fit into 639 0 times, resulting in a remainder of 639.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 639 to get 639.
Fetch the next digit (6) from the dividend, attach it to 639 and continue: 6396 / 978

Step 4:
When dividing 6396 by 978, we get 6 with a remainder of 528.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 5868 from 6396 and we're left with 528.
Bring next digit (0) of the dividend behind the 528 and repeat the process: 5280 / 978

Step 5:
5280 divided by 978 is 5 with a remainder of 390.
The number 5 becomes the next digit in our result. 
Result so far: 65.0
Deduct 4890 from 5280 and we're left with 390.
Take the next digit (6) from the dividend and append it to 390, then repeat: 3906 / 978

Moving on to step 6:
978 can be fit into 3906 3 times, resulting in a remainder of 972.
The number 3 becomes the next digit in our result. 
Result so far: 653.0
Deduct 2934 from 3906 and we're left with 972.
Fetch the next digit (9) from the dividend, attach it to 972 and continue: 9729 / 978

Moving on to step 7:
If we divide 9729 by 978, we get 9 and a remainder of 927.
Record the quotient 9 as the next digit in the result. 
Result so far: 6539.0
Subtracting 8802 from 9729 leaves us with 927.
Append the next digit (0) from the dividend to 927 and continue with: 9270 / 978

On to step 8:
The number 978 fits into 9270 9 times, leaving a remainder of 468.
The number 9 becomes the next digit in our result. 
Result so far: 65399.0
Subtract 8802 from 9270 to get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Advancing to step 9:
978 goes into 4680 4 times with a remainder of 768.
Record the quotient 4 as the next digit in the result. 
Result so far: 65399.4
If we take 3912 away from 4680, we end up with 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

Let's proceed to step 10:
978 goes into 7680 7 times with a remainder of 834.
Record the quotient 7 as the next digit in the result. 
Result so far: 65399.47
The remainder is 834 after subtracting 6846 from 7680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8340, and continue the process.

Advancing to step 11:
The number 978 fits into 8340 8 times, leaving a remainder of 516.
Use 8 as the next digit of our solution. 
Result so far: 65399.478
Subtracting 7824 from 8340 leaves us with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Step 12:
978 can be fit into 5160 5 times, resulting in a remainder of 270.
Put 5 as the next digit of the answer. 
Result so far: 65399.4785
If we subtract 4890 from 5160, 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.

Going ahead to step 13:
978 can be fit into 2700 2 times, resulting in a remainder of 744.
Record the quotient 2 as the next digit in the result. 
Result so far: 65399.47852
Deduct 1956 from 2700 and we're left with 744.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7440, and continue the process.

Moving on to step 14:
The number 978 fits into 7440 7 times, leaving a remainder of 594.
The next digit of our result is 7. 
Result so far: 65399.478527
Subtracting 6846 from 7440 leaves us with 594.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

Advancing to step 15:
If we divide 5940 by 978, we get 6 and a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 65399.4785276
Subtract 5868 from 5940 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 16:
When dividing 720 by 978, we get 0 with a remainder of 720.
Put 0 as the next digit of the answer. 
Result so far: 65399.4785276
If we subtract 0 from 720, we get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

In conclusion, the division gives 65399.4785276 with a balance of 7.2e-07.