97961218 ÷ 780 
Our goal is to divide 97961218 by 780.

Step 1:
780 goes into 9 0 times with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 780

On to step 2:
The number 780 fits into 97 0 times, leaving a remainder of 97.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 97 to get 97.
Grab the next digit (9) from the dividend, add it to 97, then carry on: 979 / 780

Going ahead to step 3:
979 divided by 780 is 1 with a remainder of 199.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 780 from 979 to get 199.
Append the next digit (6) from the dividend to 199 and continue with: 1996 / 780

Going ahead to step 4:
When dividing 1996 by 780, we get 2 with a remainder of 436.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 1560 from 1996 and we're left with 436.
Include the next digit (1) from the dividend after 436, then repeat: 4361 / 780

On to step 5:
When dividing 4361 by 780, we get 5 with a remainder of 461.
The next digit of our result is 5. 
Result so far: 125.0
Subtracting 3900 from 4361 leaves us with 461.
Grab the next digit (2) from the dividend, add it to 461, then carry on: 4612 / 780

Advancing to step 6:
If we divide 4612 by 780, we get 5 and a remainder of 712.
Use 5 as the next digit of our solution. 
Result so far: 1255.0
Subtract 3900 from 4612 to get 712.
Include the next digit (1) from the dividend after 712, then repeat: 7121 / 780

Step 7:
If we divide 7121 by 780, we get 9 and a remainder of 101.
Put 9 as the next digit of the answer. 
Result so far: 12559.0
The remainder is 101 after subtracting 7020 from 7121.
Include the next digit (8) from the dividend after 101, then repeat: 1018 / 780

Step 8:
1018 divided by 780 is 1 with a remainder of 238.
Put 1 as the next digit of the answer. 
Result so far: 125591.0
Subtracting 780 from 1018 leaves us with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Going ahead to step 9:
780 goes into 2380 3 times with a remainder of 40.
Use 3 as the next digit of our solution. 
Result so far: 125591.3
Subtracting 2340 from 2380 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
780 can be fit into 400 0 times, resulting in a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 125591.3
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 11:
4000 divided by 780 is 5 with a remainder of 100.
Put 5 as the next digit of the answer. 
Result so far: 125591.305
Subtracting 3900 from 4000 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 12:
The number 780 fits into 1000 1 times, leaving a remainder of 220.
Write down 1 as next digit of the result. 
Result so far: 125591.3051
If we take 780 away from 1000, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 13:
When dividing 2200 by 780, we get 2 with a remainder of 640.
The next digit of our result is 2. 
Result so far: 125591.30512
Deduct 1560 from 2200 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Advancing to step 14:
If we divide 6400 by 780, we get 8 and a remainder of 160.
Record the quotient 8 as the next digit in the result. 
Result so far: 125591.305128
If we take 6240 away from 6400, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 15:
780 can be fit into 1600 2 times, resulting in a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 125591.3051282
Subtract 1560 from 1600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 16:
780 can be fit into 400 0 times, resulting in a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 125591.3051282
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

After the division, we end up with 125591.3051282 and a remainder of 4e-07.