We divide 77985397 by 419
We want to figure out the number of times 77985397 can be divided by 419.

Step 1:
7 divided by 419 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 419

On to step 2:
When dividing 77 by 419, we get 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Bring next digit (9) of the dividend behind the 77 and repeat the process: 779 / 419

Moving on to step 3:
419 can be fit into 779 1 times, resulting in a remainder of 360.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 419 from 779, we get 360.
Append the next digit (8) from the dividend to 360 and continue with: 3608 / 419

Step 4:
If we divide 3608 by 419, we get 8 and a remainder of 256.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Subtracting 3352 from 3608 leaves us with 256.
Take the next digit (5) from the dividend and append it to 256, then repeat: 2565 / 419

Advancing to step 5:
When dividing 2565 by 419, we get 6 with a remainder of 51.
The number 6 becomes the next digit in our result. 
Result so far: 186.0
If we subtract 2514 from 2565, we get 51.
Take the next digit (3) from the dividend and append it to 51, then repeat: 513 / 419

Advancing to step 6:
The number 419 fits into 513 1 times, leaving a remainder of 94.
Write down 1 as next digit of the result. 
Result so far: 1861.0
If we subtract 419 from 513, we get 94.
Fetch the next digit (9) from the dividend, attach it to 94 and continue: 949 / 419

Step 7:
419 goes into 949 2 times with a remainder of 111.
Put 2 as the next digit of the answer. 
Result so far: 18612.0
If we take 838 away from 949, we end up with 111.
Grab the next digit (7) from the dividend, add it to 111, then carry on: 1117 / 419

Going ahead to step 8:
419 can be fit into 1117 2 times, resulting in a remainder of 279.
The number 2 becomes the next digit in our result. 
Result so far: 186122.0
Subtract 838 from 1117 to get 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Step 9:
2790 divided by 419 is 6 with a remainder of 276.
Put 6 as the next digit of the answer. 
Result so far: 186122.6
The remainder is 276 after subtracting 2514 from 2790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Let's proceed to step 10:
If we divide 2760 by 419, we get 6 and a remainder of 246.
Use 6 as the next digit of our solution. 
Result so far: 186122.66
If we take 2514 away from 2760, we end up with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Our division results in 186122.66 with a remaining 0.246.