We're dividing 78215402 by 197 
Our goal is to divide 78215402 by 197.

Advancing to step 1:
The number 197 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 197

Step 2:
When dividing 78 by 197, we get 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Fetch the next digit (2) from the dividend, attach it to 78 and continue: 782 / 197

Moving on to step 3:
When dividing 782 by 197, we get 3 with a remainder of 191.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 591 from 782, we get 191.
Fetch the next digit (1) from the dividend, attach it to 191 and continue: 1911 / 197

Let's proceed to step 4:
The number 197 fits into 1911 9 times, leaving a remainder of 138.
Write down 9 as next digit of the result. 
Result so far: 39.0
If we subtract 1773 from 1911, we get 138.
Grab the next digit (5) from the dividend, add it to 138, then carry on: 1385 / 197

Step 5:
The number 197 fits into 1385 7 times, leaving a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 397.0
Deduct 1379 from 1385 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 197

Going ahead to step 6:
197 goes into 64 0 times with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 3970.0
Deduct 0 from 64 and we're left with 64.
Take the next digit (0) from the dividend and append it to 64, then repeat: 640 / 197

Step 7:
When dividing 640 by 197, we get 3 with a remainder of 49.
The number 3 becomes the next digit in our result. 
Result so far: 39703.0
If we subtract 591 from 640, we get 49.
Bring next digit (2) of the dividend behind the 49 and repeat the process: 492 / 197

Moving on to step 8:
If we divide 492 by 197, we get 2 and a remainder of 98.
The number 2 becomes the next digit in our result. 
Result so far: 397032.0
Subtract 394 from 492 to get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Let's proceed to step 9:
197 goes into 980 4 times with a remainder of 192.
Put 4 as the next digit of the answer. 
Result so far: 397032.4
Deduct 788 from 980 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.

Moving on to step 10:
197 can be fit into 1920 9 times, resulting in a remainder of 147.
Put 9 as the next digit of the answer. 
Result so far: 397032.49
Subtract 1773 from 1920 to get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Advancing to step 11:
197 can be fit into 1470 7 times, resulting in a remainder of 91.
Use 7 as the next digit of our solution. 
Result so far: 397032.497
Deduct 1379 from 1470 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Moving on to step 12:
197 goes into 910 4 times with a remainder of 122.
Use 4 as the next digit of our solution. 
Result so far: 397032.4974
If we subtract 788 from 910, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Advancing to step 13:
The number 197 fits into 1220 6 times, leaving a remainder of 38.
The next digit of our result is 6. 
Result so far: 397032.49746
If we take 1182 away from 1220, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 14:
The number 197 fits into 380 1 times, leaving a remainder of 183.
The number 1 becomes the next digit in our result. 
Result so far: 397032.497461
Subtract 197 from 380 to get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Let's proceed to step 15:
197 goes into 1830 9 times with a remainder of 57.
The next digit of our result is 9. 
Result so far: 397032.4974619
If we subtract 1773 from 1830, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 16:
570 divided by 197 is 2 with a remainder of 176.
Use 2 as the next digit of our solution. 
Result so far: 397032.49746192
If we take 394 away from 570, we end up with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

In conclusion, the division gives 397032.49746192 with a balance of 1.76e-07.