83890249 ÷ 491 
We want to figure out the number of times 83890249 can be divided by 491.

Advancing to step 1:
If we divide 8 by 491, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 491

Step 2:
491 can be fit into 83 0 times, resulting in a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Include the next digit (8) from the dividend after 83, then repeat: 838 / 491

Going ahead to step 3:
The number 491 fits into 838 1 times, leaving a remainder of 347.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 491 from 838, we get 347.
Take the next digit (9) from the dividend and append it to 347, then repeat: 3479 / 491

Let's proceed to step 4:
If we divide 3479 by 491, we get 7 and a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we take 3437 away from 3479, we end up with 42.
Append the next digit (0) from the dividend to 42 and continue with: 420 / 491

Moving on to step 5:
If we divide 420 by 491, we get 0 and a remainder of 420.
Use 0 as the next digit of our solution. 
Result so far: 170.0
Subtracting 0 from 420 leaves us with 420.
Append the next digit (2) from the dividend to 420 and continue with: 4202 / 491

Step 6:
491 can be fit into 4202 8 times, resulting in a remainder of 274.
Use 8 as the next digit of our solution. 
Result so far: 1708.0
Subtract 3928 from 4202 to get 274.
Grab the next digit (4) from the dividend, add it to 274, then carry on: 2744 / 491

Step 7:
The number 491 fits into 2744 5 times, leaving a remainder of 289.
The next digit of our result is 5. 
Result so far: 17085.0
Subtract 2455 from 2744 to get 289.
Fetch the next digit (9) from the dividend, attach it to 289 and continue: 2899 / 491

Moving on to step 8:
2899 divided by 491 is 5 with a remainder of 444.
The next digit of our result is 5. 
Result so far: 170855.0
Subtract 2455 from 2899 to get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

On to step 9:
491 goes into 4440 9 times with a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 170855.9
Subtract 4419 from 4440 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 10:
When dividing 210 by 491, we get 0 with a remainder of 210.
The number 0 becomes the next digit in our result. 
Result so far: 170855.9
If we take 0 away from 210, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Advancing to step 11:
491 goes into 2100 4 times with a remainder of 136.
The number 4 becomes the next digit in our result. 
Result so far: 170855.904
Subtracting 1964 from 2100 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 12:
1360 divided by 491 is 2 with a remainder of 378.
The next digit of our result is 2. 
Result so far: 170855.9042
If we take 982 away from 1360, we end up with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Going ahead to step 13:
If we divide 3780 by 491, we get 7 and a remainder of 343.
Write down 7 as next digit of the result. 
Result so far: 170855.90427
If we subtract 3437 from 3780, we get 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Advancing to step 14:
3430 divided by 491 is 6 with a remainder of 484.
Record the quotient 6 as the next digit in the result. 
Result so far: 170855.904276
Deduct 2946 from 3430 and we're left with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

On to step 15:
491 goes into 4840 9 times with a remainder of 421.
Write down 9 as next digit of the result. 
Result so far: 170855.9042769
The remainder is 421 after subtracting 4419 from 4840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Going ahead to step 16:
491 can be fit into 4210 8 times, resulting in a remainder of 282.
The number 8 becomes the next digit in our result. 
Result so far: 170855.90427698
The remainder is 282 after subtracting 3928 from 4210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

The quotient of the division is 170855.90427698, and the remainder is 2.82e-07.