91403830 ÷ 51 
We want to divide 91403830 by 51.

Advancing to step 1:
51 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 51

Step 2:
If we divide 91 by 51, we get 1 and a remainder of 40.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 51 from 91 leaves us with 40.
Append the next digit (4) from the dividend to 40 and continue with: 404 / 51

Advancing to step 3:
When dividing 404 by 51, we get 7 with a remainder of 47.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we take 357 away from 404, we end up with 47.
Bring next digit (0) of the dividend behind the 47 and repeat the process: 470 / 51

Step 4:
51 goes into 470 9 times with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 179.0
If we subtract 459 from 470, we get 11.
Append the next digit (3) from the dividend to 11 and continue with: 113 / 51

Step 5:
51 goes into 113 2 times with a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 1792.0
Subtracting 102 from 113 leaves us with 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 51

On to step 6:
51 can be fit into 118 2 times, resulting in a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 17922.0
Subtracting 102 from 118 leaves us with 16.
Include the next digit (3) from the dividend after 16, then repeat: 163 / 51

Going ahead to step 7:
51 goes into 163 3 times with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 179223.0
The remainder is 10 after subtracting 153 from 163.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 51

Advancing to step 8:
The number 51 fits into 100 1 times, leaving a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 1792231.0
If we subtract 51 from 100, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 9:
When dividing 490 by 51, we get 9 with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 1792231.9
The remainder is 31 after subtracting 459 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 10:
51 can be fit into 310 6 times, resulting in a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 1792231.96
Subtracting 306 from 310 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 11:
If we divide 40 by 51, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1792231.96
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
If we divide 400 by 51, we get 7 and a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 1792231.9607
The remainder is 43 after subtracting 357 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 13:
The number 51 fits into 430 8 times, leaving a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 1792231.96078
Subtracting 408 from 430 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 14:
If we divide 220 by 51, we get 4 and a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 1792231.960784
Subtracting 204 from 220 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 15:
When dividing 160 by 51, we get 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 1792231.9607843
Subtract 153 from 160 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 16:
If we divide 70 by 51, we get 1 and a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 1792231.96078431
Subtract 51 from 70 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The quotient of the division is 1792231.96078431, and the remainder is 1.9e-08.