21665350 divided by 58 
We're looking to find how many times 58 goes into 21665350.

On to step 1:
When dividing 2 by 58, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 58

On to step 2:
58 can be fit into 21 0 times, resulting in a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Append the next digit (6) from the dividend to 21 and continue with: 216 / 58

Let's proceed to step 3:
The number 58 fits into 216 3 times, leaving a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 174 from 216, we get 42.
Grab the next digit (6) from the dividend, add it to 42, then carry on: 426 / 58

Advancing to step 4:
The number 58 fits into 426 7 times, leaving a remainder of 20.
Write down 7 as next digit of the result. 
Result so far: 37.0
If we subtract 406 from 426, we get 20.
Append the next digit (5) from the dividend to 20 and continue with: 205 / 58

Step 5:
The number 58 fits into 205 3 times, leaving a remainder of 31.
Use 3 as the next digit of our solution. 
Result so far: 373.0
Subtracting 174 from 205 leaves us with 31.
Append the next digit (3) from the dividend to 31 and continue with: 313 / 58

Advancing to step 6:
When dividing 313 by 58, we get 5 with a remainder of 23.
Write down 5 as next digit of the result. 
Result so far: 3735.0
Subtracting 290 from 313 leaves us with 23.
Include the next digit (5) from the dividend after 23, then repeat: 235 / 58

Step 7:
If we divide 235 by 58, we get 4 and a remainder of 3.
The next digit of our result is 4. 
Result so far: 37354.0
Deduct 232 from 235 and we're left with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 58

Moving on to step 8:
58 can be fit into 30 0 times, resulting in a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 373540.0
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 9:
58 goes into 300 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 373540.5
The remainder is 10 after subtracting 290 from 300.
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:
100 divided by 58 is 1 with a remainder of 42.
Write down 1 as next digit of the result. 
Result so far: 373540.51
If we subtract 58 from 100, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 11:
58 goes into 420 7 times with a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 373540.517
The remainder is 14 after subtracting 406 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 12:
58 goes into 140 2 times with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 373540.5172
The remainder is 24 after subtracting 116 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 13:
240 divided by 58 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 373540.51724
Subtract 232 from 240 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.

Moving on to step 14:
58 can be fit into 80 1 times, resulting in a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 373540.517241
The remainder is 22 after subtracting 58 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 15:
58 goes into 220 3 times with a remainder of 46.
The number 3 becomes the next digit in our result. 
Result so far: 373540.5172413
Subtracting 174 from 220 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 16:
58 goes into 460 7 times with a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 373540.51724137
Deduct 406 from 460 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The final outcome is 373540.51724137, with a leftover of 5.4e-08.