We're dividing 78791926 by 189 
We want to figure out the number of times 78791926 can be divided by 189.

Step 1:
If we divide 7 by 189, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 189

On to step 2:
189 goes into 78 0 times with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Append the next digit (7) from the dividend to 78 and continue with: 787 / 189

Step 3:
189 goes into 787 4 times with a remainder of 31.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 756 away from 787, we end up with 31.
Take the next digit (9) from the dividend and append it to 31, then repeat: 319 / 189

Going ahead to step 4:
189 goes into 319 1 times with a remainder of 130.
Record the quotient 1 as the next digit in the result. 
Result so far: 41.0
If we subtract 189 from 319, we get 130.
Include the next digit (1) from the dividend after 130, then repeat: 1301 / 189

Let's proceed to step 5:
1301 divided by 189 is 6 with a remainder of 167.
The number 6 becomes the next digit in our result. 
Result so far: 416.0
Subtracting 1134 from 1301 leaves us with 167.
Include the next digit (9) from the dividend after 167, then repeat: 1679 / 189

Let's proceed to step 6:
189 goes into 1679 8 times with a remainder of 167.
Record the quotient 8 as the next digit in the result. 
Result so far: 4168.0
If we take 1512 away from 1679, we end up with 167.
Append the next digit (2) from the dividend to 167 and continue with: 1672 / 189

On to step 7:
The number 189 fits into 1672 8 times, leaving a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 41688.0
If we take 1512 away from 1672, we end up with 160.
Take the next digit (6) from the dividend and append it to 160, then repeat: 1606 / 189

Moving on to step 8:
When dividing 1606 by 189, we get 8 with a remainder of 94.
Write down 8 as next digit of the result. 
Result so far: 416888.0
Subtract 1512 from 1606 to get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 9:
189 goes into 940 4 times with a remainder of 184.
The next digit of our result is 4. 
Result so far: 416888.4
If we take 756 away from 940, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Step 10:
The number 189 fits into 1840 9 times, leaving a remainder of 139.
The number 9 becomes the next digit in our result. 
Result so far: 416888.49
If we take 1701 away from 1840, we end up with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 11:
189 can be fit into 1390 7 times, resulting in a remainder of 67.
Put 7 as the next digit of the answer. 
Result so far: 416888.497
If we subtract 1323 from 1390, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 12:
189 can be fit into 670 3 times, resulting in a remainder of 103.
The number 3 becomes the next digit in our result. 
Result so far: 416888.4973
Subtract 567 from 670 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Going ahead to step 13:
189 goes into 1030 5 times with a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 416888.49735
If we take 945 away from 1030, we end up with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Step 14:
850 divided by 189 is 4 with a remainder of 94.
The next digit of our result is 4. 
Result so far: 416888.497354
Subtract 756 from 850 to get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 15:
If we divide 940 by 189, we get 4 and a remainder of 184.
Write down 4 as next digit of the result. 
Result so far: 416888.4973544
Deduct 756 from 940 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

The final result is 416888.4973544 with a remainder of 1.84e-06.