721093 ÷ 51 
We're looking to find how many times 51 goes into 721093.

Step 1:
51 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 51

On to step 2:
51 can be fit into 72 1 times, resulting in a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 51 from 72 to get 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 51

Going ahead to step 3:
When dividing 211 by 51, we get 4 with a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we take 204 away from 211, we end up with 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 51

Advancing to step 4:
If we divide 70 by 51, we get 1 and a remainder of 19.
The next digit of our result is 1. 
Result so far: 141.0
Subtract 51 from 70 to get 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 51

Advancing to step 5:
The number 51 fits into 199 3 times, leaving a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 1413.0
If we take 153 away from 199, we end up with 46.
Fetch the next digit (3) from the dividend, attach it to 46 and continue: 463 / 51

Let's proceed to step 6:
If we divide 463 by 51, we get 9 and a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 14139.0
Subtract 459 from 463 to 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.

On to step 7:
If we divide 40 by 51, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 14139.0
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
If we divide 400 by 51, we get 7 and a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 14139.07
Subtract 357 from 400 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 9:
430 divided by 51 is 8 with a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 14139.078
If we take 408 away from 430, we end up 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.

Advancing to step 10:
51 can be fit into 220 4 times, resulting in a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 14139.0784
Deduct 204 from 220 and we're left 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 11:
If we divide 160 by 51, we get 3 and a remainder of 7.
The next digit of our result is 3. 
Result so far: 14139.07843
Deduct 153 from 160 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.

Let's proceed to step 12:
51 can be fit into 70 1 times, resulting in a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 14139.078431
Subtracting 51 from 70 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 13:
The number 51 fits into 190 3 times, leaving a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 14139.0784313
Subtracting 153 from 190 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 14:
If we divide 370 by 51, we get 7 and a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 14139.07843137
The remainder is 13 after subtracting 357 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

In conclusion, the division gives 14139.07843137 with a balance of 1.3e-08.