75421391 ÷ 52 
We're looking to find how many times 52 goes into 75421391.

On to step 1:
52 can be fit into 7 0 times, resulting in 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.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 52

Going ahead to step 2:
52 can be fit into 75 1 times, resulting in a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 52 away from 75, we end up with 23.
Fetch the next digit (4) from the dividend, attach it to 23 and continue: 234 / 52

Moving on to step 3:
The number 52 fits into 234 4 times, leaving a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 208 from 234 and we're left with 26.
Include the next digit (2) from the dividend after 26, then repeat: 262 / 52

Going ahead to step 4:
If we divide 262 by 52, we get 5 and a remainder of 2.
The next digit of our result is 5. 
Result so far: 145.0
Deduct 260 from 262 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 52

On to step 5:
52 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 1450.0
If we subtract 0 from 21, we get 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 52

On to step 6:
When dividing 213 by 52, we get 4 with a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 14504.0
If we subtract 208 from 213, we get 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 52

Moving on to step 7:
52 goes into 59 1 times with a remainder of 7.
The next digit of our result is 1. 
Result so far: 145041.0
If we subtract 52 from 59, we get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 52

Advancing to step 8:
52 can be fit into 71 1 times, resulting in a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 1450411.0
The remainder is 19 after subtracting 52 from 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
When dividing 190 by 52, we get 3 with a remainder of 34.
Record the quotient 3 as the next digit in the result. 
Result so far: 1450411.3
Subtract 156 from 190 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 10:
The number 52 fits into 340 6 times, leaving a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 1450411.36
If we subtract 312 from 340, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 11:
If we divide 280 by 52, we get 5 and a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 1450411.365
The remainder is 20 after subtracting 260 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
If we divide 200 by 52, we get 3 and a remainder of 44.
The next digit of our result is 3. 
Result so far: 1450411.3653
Deduct 156 from 200 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 13:
52 can be fit into 440 8 times, resulting in a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 1450411.36538
The remainder is 24 after subtracting 416 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 14:
240 divided by 52 is 4 with a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 1450411.365384
If we subtract 208 from 240, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 15:
When dividing 320 by 52, we get 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 1450411.3653846
Subtract 312 from 320 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 16:
If we divide 80 by 52, we get 1 and a remainder of 28.
The next digit of our result is 1. 
Result so far: 1450411.36538461
The remainder is 28 after subtracting 52 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The quotient of the division is 1450411.36538461, and the remainder is 2.8e-08.