We divide 78157840 by 491
We're looking to find how many times 491 goes into 78157840.

Moving on to step 1:
When dividing 7 by 491, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 491

On to step 2:
The number 491 fits into 78 0 times, leaving a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Include the next digit (1) from the dividend after 78, then repeat: 781 / 491

Going ahead to step 3:
781 divided by 491 is 1 with a remainder of 290.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 491 from 781 to get 290.
Include the next digit (5) from the dividend after 290, then repeat: 2905 / 491

Advancing to step 4:
If we divide 2905 by 491, we get 5 and a remainder of 450.
The next digit of our result is 5. 
Result so far: 15.0
If we subtract 2455 from 2905, we get 450.
Include the next digit (7) from the dividend after 450, then repeat: 4507 / 491

Advancing to step 5:
4507 divided by 491 is 9 with a remainder of 88.
The number 9 becomes the next digit in our result. 
Result so far: 159.0
Subtract 4419 from 4507 to get 88.
Fetch the next digit (8) from the dividend, attach it to 88 and continue: 888 / 491

Going ahead to step 6:
888 divided by 491 is 1 with a remainder of 397.
The number 1 becomes the next digit in our result. 
Result so far: 1591.0
Subtract 491 from 888 to get 397.
Fetch the next digit (4) from the dividend, attach it to 397 and continue: 3974 / 491

Let's proceed to step 7:
491 goes into 3974 8 times with a remainder of 46.
Record the quotient 8 as the next digit in the result. 
Result so far: 15918.0
The remainder is 46 after subtracting 3928 from 3974.
Grab the next digit (0) from the dividend, add it to 46, then carry on: 460 / 491

On to step 8:
491 can be fit into 460 0 times, resulting in a remainder of 460.
Write down 0 as next digit of the result. 
Result so far: 159180.0
Subtracting 0 from 460 leaves us with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Moving on to step 9:
4600 divided by 491 is 9 with a remainder of 181.
The number 9 becomes the next digit in our result. 
Result so far: 159180.9
Deduct 4419 from 4600 and we're left with 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

On to step 10:
1810 divided by 491 is 3 with a remainder of 337.
Record the quotient 3 as the next digit in the result. 
Result so far: 159180.93
If we subtract 1473 from 1810, we get 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Going ahead to step 11:
491 goes into 3370 6 times with a remainder of 424.
Put 6 as the next digit of the answer. 
Result so far: 159180.936
The remainder is 424 after subtracting 2946 from 3370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Going ahead to step 12:
When dividing 4240 by 491, we get 8 with a remainder of 312.
The number 8 becomes the next digit in our result. 
Result so far: 159180.9368
If we take 3928 away from 4240, we end up with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Step 13:
491 goes into 3120 6 times with a remainder of 174.
Put 6 as the next digit of the answer. 
Result so far: 159180.93686
Subtract 2946 from 3120 to get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Going ahead to step 14:
491 can be fit into 1740 3 times, resulting in a remainder of 267.
Record the quotient 3 as the next digit in the result. 
Result so far: 159180.936863
If we take 1473 away from 1740, we end up with 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

On to step 15:
2670 divided by 491 is 5 with a remainder of 215.
Write down 5 as next digit of the result. 
Result so far: 159180.9368635
If we subtract 2455 from 2670, we get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Let's proceed to step 16:
The number 491 fits into 2150 4 times, leaving a remainder of 186.
Use 4 as the next digit of our solution. 
Result so far: 159180.93686354
Subtracting 1964 from 2150 leaves us with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Our division results in 159180.93686354 with a remaining 1.86e-07.