91963487 ÷ 53 
We want to figure out the number of times 91963487 can be divided by 53.

Advancing to step 1:
If we divide 9 by 53, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 53

Moving on to step 2:
53 goes into 91 1 times with a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 53 from 91 to get 38.
Include the next digit (9) from the dividend after 38, then repeat: 389 / 53

Advancing to step 3:
53 can be fit into 389 7 times, resulting in a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we take 371 away from 389, we end up with 18.
Bring next digit (6) of the dividend behind the 18 and repeat the process: 186 / 53

On to step 4:
53 goes into 186 3 times with a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 173.0
The remainder is 27 after subtracting 159 from 186.
Include the next digit (3) from the dividend after 27, then repeat: 273 / 53

Let's proceed to step 5:
53 can be fit into 273 5 times, resulting in a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 1735.0
If we take 265 away from 273, we end up with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 53

On to step 6:
53 can be fit into 84 1 times, resulting in a remainder of 31.
The next digit of our result is 1. 
Result so far: 17351.0
Deduct 53 from 84 and we're left with 31.
Bring next digit (8) of the dividend behind the 31 and repeat the process: 318 / 53

Advancing to step 7:
The number 53 fits into 318 6 times, leaving a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 173516.0
If we take 318 away from 318, we end up with 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 53

Let's proceed to step 8:
7 divided by 53 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 1735160.0
Deduct 0 from 7 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 9:
The number 53 fits into 70 1 times, leaving a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1735160.1
If we take 53 away from 70, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 10:
170 divided by 53 is 3 with a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 1735160.13
If we take 159 away from 170, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 11:
53 can be fit into 110 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 1735160.132
If we subtract 106 from 110, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 12:
53 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 1735160.132
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.

Moving on to step 13:
400 divided by 53 is 7 with a remainder of 29.
Write down 7 as next digit of the result. 
Result so far: 1735160.13207
Deduct 371 from 400 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 14:
The number 53 fits into 290 5 times, leaving a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 1735160.132075
The remainder is 25 after subtracting 265 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 15:
If we divide 250 by 53, we get 4 and a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 1735160.1320754
If we subtract 212 from 250, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 16:
The number 53 fits into 380 7 times, leaving a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 1735160.13207547
Subtract 371 from 380 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The quotient of the division is 1735160.13207547, and the remainder is 9e-09.