752161 divided by 21 
Our goal is to divide 752161 by 21.

Moving on to step 1:
21 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 21

Moving on to step 2:
If we divide 75 by 21, we get 3 and a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 63 from 75 to get 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 21

Advancing to step 3:
When dividing 122 by 21, we get 5 with a remainder of 17.
Put 5 as the next digit of the answer. 
Result so far: 35.0
If we subtract 105 from 122, we get 17.
Bring next digit (1) of the dividend behind the 17 and repeat the process: 171 / 21

On to step 4:
171 divided by 21 is 8 with a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 358.0
If we subtract 168 from 171, we get 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 21

Let's proceed to step 5:
36 divided by 21 is 1 with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 3581.0
The remainder is 15 after subtracting 21 from 36.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 21

Advancing to step 6:
151 divided by 21 is 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 35817.0
If we subtract 147 from 151, 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.

Advancing to step 7:
40 divided by 21 is 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 35817.1
Subtract 21 from 40 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.

Step 8:
The number 21 fits into 190 9 times, leaving a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 35817.19
If we take 189 away from 190, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
21 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 35817.19
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
When dividing 100 by 21, we get 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 35817.1904
Subtract 84 from 100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
The number 21 fits into 160 7 times, leaving a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 35817.19047
If we subtract 147 from 160, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 12:
When dividing 130 by 21, we get 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 35817.190476
If we subtract 126 from 130, 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.

Moving on to step 13:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 35817.1904761
Subtract 21 from 40 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.

On to step 14:
21 can be fit into 190 9 times, resulting in a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 35817.19047619
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 35817.19047619, with a leftover of 1e-09.