We're dividing 78219383 by 172 
We want to figure out the number of times 78219383 can be divided by 172.

Step 1:
7 divided by 172 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 172

Let's proceed to step 2:
172 can be fit into 78 0 times, resulting in a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Grab the next digit (2) from the dividend, add it to 78, then carry on: 782 / 172

Advancing to step 3:
172 can be fit into 782 4 times, resulting in a remainder of 94.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 688 from 782 to get 94.
Fetch the next digit (1) from the dividend, attach it to 94 and continue: 941 / 172

Going ahead to step 4:
172 can be fit into 941 5 times, resulting in a remainder of 81.
Write down 5 as next digit of the result. 
Result so far: 45.0
The remainder is 81 after subtracting 860 from 941.
Fetch the next digit (9) from the dividend, attach it to 81 and continue: 819 / 172

Advancing to step 5:
When dividing 819 by 172, we get 4 with a remainder of 131.
The next digit of our result is 4. 
Result so far: 454.0
If we take 688 away from 819, we end up with 131.
Take the next digit (3) from the dividend and append it to 131, then repeat: 1313 / 172

Going ahead to step 6:
172 goes into 1313 7 times with a remainder of 109.
The next digit of our result is 7. 
Result so far: 4547.0
If we subtract 1204 from 1313, we get 109.
Grab the next digit (8) from the dividend, add it to 109, then carry on: 1098 / 172

Moving on to step 7:
The number 172 fits into 1098 6 times, leaving a remainder of 66.
Record the quotient 6 as the next digit in the result. 
Result so far: 45476.0
If we subtract 1032 from 1098, we get 66.
Include the next digit (3) from the dividend after 66, then repeat: 663 / 172

Going ahead to step 8:
172 can be fit into 663 3 times, resulting in a remainder of 147.
Write down 3 as next digit of the result. 
Result so far: 454763.0
If we take 516 away from 663, we end up with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Let's proceed to step 9:
When dividing 1470 by 172, we get 8 with a remainder of 94.
The number 8 becomes the next digit in our result. 
Result so far: 454763.8
Subtracting 1376 from 1470 leaves us with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Moving on to step 10:
If we divide 940 by 172, we get 5 and a remainder of 80.
The number 5 becomes the next digit in our result. 
Result so far: 454763.85
Subtract 860 from 940 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 11:
172 can be fit into 800 4 times, resulting in a remainder of 112.
Write down 4 as next digit of the result. 
Result so far: 454763.854
If we take 688 away from 800, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 12:
If we divide 1120 by 172, we get 6 and a remainder of 88.
The next digit of our result is 6. 
Result so far: 454763.8546
Subtracting 1032 from 1120 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Moving on to step 13:
When dividing 880 by 172, we get 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 454763.85465
Deduct 860 from 880 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
The number 172 fits into 200 1 times, leaving a remainder of 28.
Use 1 as the next digit of our solution. 
Result so far: 454763.854651
Deduct 172 from 200 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 15:
172 goes into 280 1 times with a remainder of 108.
Use 1 as the next digit of our solution. 
Result so far: 454763.8546511
Subtracting 172 from 280 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

The quotient of the division is 454763.8546511, and the remainder is 1.08e-06.